Home / 131,220,121.40-196,830,182.10-124,205,100.20

Finding the Fourth Proportional to 131,220,121.40, 196,830,182.10 and 124,205,100.20

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Solution

The fourth proportional to 131,220,121.40, 196,830,182.10 and 124,205,100.20 is: 186,307,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,121.40 : 196,830,182.10 = 124,205,100.20 : x
  2. Step 2: Convert to fraction form
    131,220,121.40/196,830,182.10 = 124,205,100.20/x
  3. Step 3: Cross multiply
    131,220,121.40x = 196,830,182.10 × 124,205,100.20
  4. Step 4: Simplify right side
    131,220,121.40x = 24,447,312,490,114,748
  5. Step 5: Solve for x
    x = 24,447,312,490,114,748/131,220,121.40
  6. Step 6: Final answer
    x = 186,307,650.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.