Home / 109,210.20-150,685.15-61,446.12

Finding the Fourth Proportional to 109,210.20, 150,685.15 and 61,446.12

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Solution

The fourth proportional to 109,210.20, 150,685.15 and 61,446.12 is: 84,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,210.20 : 150,685.15 = 61,446.12 : x
  2. Step 2: Convert to fraction form
    109,210.20/150,685.15 = 61,446.12/x
  3. Step 3: Cross multiply
    109,210.20x = 150,685.15 × 61,446.12
  4. Step 4: Simplify right side
    109,210.20x = 9,259,018,335.78
  5. Step 5: Solve for x
    x = 9,259,018,335.78/109,210.20
  6. Step 6: Final answer
    x = 84,781.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.