Home / 145,265.45-217,963.89-74,151.36

Finding the Fourth Proportional to 145,265.45, 217,963.89 and 74,151.36

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Solution

The fourth proportional to 145,265.45, 217,963.89 and 74,151.36 is: 111,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,265.45 : 217,963.89 = 74,151.36 : x
  2. Step 2: Convert to fraction form
    145,265.45/217,963.89 = 74,151.36/x
  3. Step 3: Cross multiply
    145,265.45x = 217,963.89 × 74,151.36
  4. Step 4: Simplify right side
    145,265.45x = 16,162,318,874.39
  5. Step 5: Solve for x
    x = 16,162,318,874.39/145,265.45
  6. Step 6: Final answer
    x = 111,260.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.