Home / 131,874-181,986.24-75,284.16

Finding the Fourth Proportional to 131,874, 181,986.24 and 75,284.16

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Solution

The fourth proportional to 131,874, 181,986.24 and 75,284.16 is: 103,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,874 : 181,986.24 = 75,284.16 : x
  2. Step 2: Convert to fraction form
    131,874/181,986.24 = 75,284.16/x
  3. Step 3: Cross multiply
    131,874x = 181,986.24 × 75,284.16
  4. Step 4: Simplify right side
    131,874x = 13,700,681,209.96
  5. Step 5: Solve for x
    x = 13,700,681,209.96/131,874
  6. Step 6: Final answer
    x = 103,892.21

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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.