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Finding the Fourth Proportional to 126,522.48, 189,812.52 and 43,411.44

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Solution

The fourth proportional to 126,522.48, 189,812.52 and 43,411.44 is: 65,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,522.48 : 189,812.52 = 43,411.44 : x
  2. Step 2: Convert to fraction form
    126,522.48/189,812.52 = 43,411.44/x
  3. Step 3: Cross multiply
    126,522.48x = 189,812.52 × 43,411.44
  4. Step 4: Simplify right side
    126,522.48x = 8,240,034,823.23
  5. Step 5: Solve for x
    x = 8,240,034,823.23/126,522.48
  6. Step 6: Final answer
    x = 65,127.04

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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.