Home / 123,423.68-185,116.60-39,172.92

Finding the Fourth Proportional to 123,423.68, 185,116.60 and 39,172.92

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Solution

The fourth proportional to 123,423.68, 185,116.60 and 39,172.92 is: 58,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,423.68 : 185,116.60 = 39,172.92 : x
  2. Step 2: Convert to fraction form
    123,423.68/185,116.60 = 39,172.92/x
  3. Step 3: Cross multiply
    123,423.68x = 185,116.60 × 39,172.92
  4. Step 4: Simplify right side
    123,423.68x = 7,251,557,762.47
  5. Step 5: Solve for x
    x = 7,251,557,762.47/123,423.68
  6. Step 6: Final answer
    x = 58,753.38

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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.