Home / 131,220,131.40-196,830,197.10-124,205,110.20

Finding the Fourth Proportional to 131,220,131.40, 196,830,197.10 and 124,205,110.20

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Solution

The fourth proportional to 131,220,131.40, 196,830,197.10 and 124,205,110.20 is: 186,307,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,131.40 : 196,830,197.10 = 124,205,110.20 : x
  2. Step 2: Convert to fraction form
    131,220,131.40/196,830,197.10 = 124,205,110.20/x
  3. Step 3: Cross multiply
    131,220,131.40x = 196,830,197.10 × 124,205,110.20
  4. Step 4: Simplify right side
    131,220,131.40x = 24,447,316,321,493,220
  5. Step 5: Solve for x
    x = 24,447,316,321,493,220/131,220,131.40
  6. Step 6: Final answer
    x = 186,307,665.30

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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.