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Finding the Fourth Proportional to 137,452.92, 189,684.90 and 77,024.04

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Solution

The fourth proportional to 137,452.92, 189,684.90 and 77,024.04 is: 106,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,452.92 : 189,684.90 = 77,024.04 : x
  2. Step 2: Convert to fraction form
    137,452.92/189,684.90 = 77,024.04/x
  3. Step 3: Cross multiply
    137,452.92x = 189,684.90 × 77,024.04
  4. Step 4: Simplify right side
    137,452.92x = 14,610,297,325.00
  5. Step 5: Solve for x
    x = 14,610,297,325.00/137,452.92
  6. Step 6: Final answer
    x = 106,293.10

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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.