Home / 135,285.35-186,691.93-74,854.90

Finding the Fourth Proportional to 135,285.35, 186,691.93 and 74,854.90

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Solution

The fourth proportional to 135,285.35, 186,691.93 and 74,854.90 is: 103,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,285.35 : 186,691.93 = 74,854.90 : x
  2. Step 2: Convert to fraction form
    135,285.35/186,691.93 = 74,854.90/x
  3. Step 3: Cross multiply
    135,285.35x = 186,691.93 × 74,854.90
  4. Step 4: Simplify right side
    135,285.35x = 13,974,805,097.09
  5. Step 5: Solve for x
    x = 13,974,805,097.09/135,285.35
  6. Step 6: Final answer
    x = 103,298.73

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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.