Home / 243,531.76-336,044.72-134,621.43

Finding the Fourth Proportional to 243,531.76, 336,044.72 and 134,621.43

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Solution

The fourth proportional to 243,531.76, 336,044.72 and 134,621.43 is: 185,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,531.76 : 336,044.72 = 134,621.43 : x
  2. Step 2: Convert to fraction form
    243,531.76/336,044.72 = 134,621.43/x
  3. Step 3: Cross multiply
    243,531.76x = 336,044.72 × 134,621.43
  4. Step 4: Simplify right side
    243,531.76x = 45,238,819,815.17
  5. Step 5: Solve for x
    x = 45,238,819,815.17/243,531.76
  6. Step 6: Final answer
    x = 185,761.48

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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.