Home / 87,373.38-120,790.13-86,574.16

Finding the Fourth Proportional to 87,373.38, 120,790.13 and 86,574.16

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Solution

The fourth proportional to 87,373.38, 120,790.13 and 86,574.16 is: 119,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,373.38 : 120,790.13 = 86,574.16 : x
  2. Step 2: Convert to fraction form
    87,373.38/120,790.13 = 86,574.16/x
  3. Step 3: Cross multiply
    87,373.38x = 120,790.13 × 86,574.16
  4. Step 4: Simplify right side
    87,373.38x = 10,457,304,041.04
  5. Step 5: Solve for x
    x = 10,457,304,041.04/87,373.38
  6. Step 6: Final answer
    x = 119,685.24

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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.