Home / 132,387.10-182,698.13-81,429.73

Finding the Fourth Proportional to 132,387.10, 182,698.13 and 81,429.73

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Solution

The fourth proportional to 132,387.10, 182,698.13 and 81,429.73 is: 112,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,387.10 : 182,698.13 = 81,429.73 : x
  2. Step 2: Convert to fraction form
    132,387.10/182,698.13 = 81,429.73/x
  3. Step 3: Cross multiply
    132,387.10x = 182,698.13 × 81,429.73
  4. Step 4: Simplify right side
    132,387.10x = 14,877,059,397.40
  5. Step 5: Solve for x
    x = 14,877,059,397.40/132,387.10
  6. Step 6: Final answer
    x = 112,375.45

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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.