Home / 131,461.80-197,144.10-42,718.20

Finding the Fourth Proportional to 131,461.80, 197,144.10 and 42,718.20

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Solution

The fourth proportional to 131,461.80, 197,144.10 and 42,718.20 is: 64,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,461.80 : 197,144.10 = 42,718.20 : x
  2. Step 2: Convert to fraction form
    131,461.80/197,144.10 = 42,718.20/x
  3. Step 3: Cross multiply
    131,461.80x = 197,144.10 × 42,718.20
  4. Step 4: Simplify right side
    131,461.80x = 8,421,641,092.62
  5. Step 5: Solve for x
    x = 8,421,641,092.62/131,461.80
  6. Step 6: Final answer
    x = 64,061.51

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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.