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Finding the Fourth Proportional to 126,762.52, 175,050.83 and 81,519.08

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Solution

The fourth proportional to 126,762.52, 175,050.83 and 81,519.08 is: 112,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,762.52 : 175,050.83 = 81,519.08 : x
  2. Step 2: Convert to fraction form
    126,762.52/175,050.83 = 81,519.08/x
  3. Step 3: Cross multiply
    126,762.52x = 175,050.83 × 81,519.08
  4. Step 4: Simplify right side
    126,762.52x = 14,269,982,207.24
  5. Step 5: Solve for x
    x = 14,269,982,207.24/126,762.52
  6. Step 6: Final answer
    x = 112,572.57

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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.