Home / 123,587.40-185,381.10-101,425.80

Finding the Fourth Proportional to 123,587.40, 185,381.10 and 101,425.80

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Solution

The fourth proportional to 123,587.40, 185,381.10 and 101,425.80 is: 152,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,587.40 : 185,381.10 = 101,425.80 : x
  2. Step 2: Convert to fraction form
    123,587.40/185,381.10 = 101,425.80/x
  3. Step 3: Cross multiply
    123,587.40x = 185,381.10 × 101,425.80
  4. Step 4: Simplify right side
    123,587.40x = 18,802,426,372.38
  5. Step 5: Solve for x
    x = 18,802,426,372.38/123,587.40
  6. Step 6: Final answer
    x = 152,138.70

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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.