Home / 135,046.28-186,372.62-74,616.91

Finding the Fourth Proportional to 135,046.28, 186,372.62 and 74,616.91

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Solution

The fourth proportional to 135,046.28, 186,372.62 and 74,616.91 is: 102,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,046.28 : 186,372.62 = 74,616.91 : x
  2. Step 2: Convert to fraction form
    135,046.28/186,372.62 = 74,616.91/x
  3. Step 3: Cross multiply
    135,046.28x = 186,372.62 × 74,616.91
  4. Step 4: Simplify right side
    135,046.28x = 13,906,549,013.00
  5. Step 5: Solve for x
    x = 13,906,549,013.00/135,046.28
  6. Step 6: Final answer
    x = 102,976.17

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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.