Home / 123,785.18-185,655.84-56,301.42

Finding the Fourth Proportional to 123,785.18, 185,655.84 and 56,301.42

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Solution

The fourth proportional to 123,785.18, 185,655.84 and 56,301.42 is: 84,442.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,785.18 : 185,655.84 = 56,301.42 : x
  2. Step 2: Convert to fraction form
    123,785.18/185,655.84 = 56,301.42/x
  3. Step 3: Cross multiply
    123,785.18x = 185,655.84 × 56,301.42
  4. Step 4: Simplify right side
    123,785.18x = 10,452,687,423.29
  5. Step 5: Solve for x
    x = 10,452,687,423.29/123,785.18
  6. Step 6: Final answer
    x = 84,442.16

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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.