Home / 135,042.39-186,357.41-74,612.85

Finding the Fourth Proportional to 135,042.39, 186,357.41 and 74,612.85

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Solution

The fourth proportional to 135,042.39, 186,357.41 and 74,612.85 is: 102,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,042.39 : 186,357.41 = 74,612.85 : x
  2. Step 2: Convert to fraction form
    135,042.39/186,357.41 = 74,612.85/x
  3. Step 3: Cross multiply
    135,042.39x = 186,357.41 × 74,612.85
  4. Step 4: Simplify right side
    135,042.39x = 13,904,657,105.65
  5. Step 5: Solve for x
    x = 13,904,657,105.65/135,042.39
  6. Step 6: Final answer
    x = 102,965.13

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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.