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Finding the Fourth Proportional to 144,422.56, 216,565.46 and 84,468.38

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Solution

The fourth proportional to 144,422.56, 216,565.46 and 84,468.38 is: 126,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,422.56 : 216,565.46 = 84,468.38 : x
  2. Step 2: Convert to fraction form
    144,422.56/216,565.46 = 84,468.38/x
  3. Step 3: Cross multiply
    144,422.56x = 216,565.46 × 84,468.38
  4. Step 4: Simplify right side
    144,422.56x = 18,292,933,570.15
  5. Step 5: Solve for x
    x = 18,292,933,570.15/144,422.56
  6. Step 6: Final answer
    x = 126,662.58

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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.