Home / 134,562.25-185,695.91-78,006.43

Finding the Fourth Proportional to 134,562.25, 185,695.91 and 78,006.43

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Solution

The fourth proportional to 134,562.25, 185,695.91 and 78,006.43 is: 107,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,562.25 : 185,695.91 = 78,006.43 : x
  2. Step 2: Convert to fraction form
    134,562.25/185,695.91 = 78,006.43/x
  3. Step 3: Cross multiply
    134,562.25x = 185,695.91 × 78,006.43
  4. Step 4: Simplify right side
    134,562.25x = 14,485,475,004.70
  5. Step 5: Solve for x
    x = 14,485,475,004.70/134,562.25
  6. Step 6: Final answer
    x = 107,648.88

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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.