Home / 146,429.71-219,565.64-78,997.90

Finding the Fourth Proportional to 146,429.71, 219,565.64 and 78,997.90

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Solution

The fourth proportional to 146,429.71, 219,565.64 and 78,997.90 is: 118,454.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,429.71 : 219,565.64 = 78,997.90 : x
  2. Step 2: Convert to fraction form
    146,429.71/219,565.64 = 78,997.90/x
  3. Step 3: Cross multiply
    146,429.71x = 219,565.64 × 78,997.90
  4. Step 4: Simplify right side
    146,429.71x = 17,345,223,253.80
  5. Step 5: Solve for x
    x = 17,345,223,253.80/146,429.71
  6. Step 6: Final answer
    x = 118,454.26

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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.