Home / 131,276.52-181,165.77-74,691.54

Finding the Fourth Proportional to 131,276.52, 181,165.77 and 74,691.54

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Solution

The fourth proportional to 131,276.52, 181,165.77 and 74,691.54 is: 103,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,276.52 : 181,165.77 = 74,691.54 : x
  2. Step 2: Convert to fraction form
    131,276.52/181,165.77 = 74,691.54/x
  3. Step 3: Cross multiply
    131,276.52x = 181,165.77 × 74,691.54
  4. Step 4: Simplify right side
    131,276.52x = 13,531,550,356.59
  5. Step 5: Solve for x
    x = 13,531,550,356.59/131,276.52
  6. Step 6: Final answer
    x = 103,076.70

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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.