Home / 147,098.10-220,785.39-77,027.70

Finding the Fourth Proportional to 147,098.10, 220,785.39 and 77,027.70

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Solution

The fourth proportional to 147,098.10, 220,785.39 and 77,027.70 is: 115,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,098.10 : 220,785.39 = 77,027.70 : x
  2. Step 2: Convert to fraction form
    147,098.10/220,785.39 = 77,027.70/x
  3. Step 3: Cross multiply
    147,098.10x = 220,785.39 × 77,027.70
  4. Step 4: Simplify right side
    147,098.10x = 17,006,590,785.30
  5. Step 5: Solve for x
    x = 17,006,590,785.30/147,098.10
  6. Step 6: Final answer
    x = 115,613.94

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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.