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Finding the Fourth Proportional to 144,957.78, 217,188.80 and 113,355.64

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Solution

The fourth proportional to 144,957.78, 217,188.80 and 113,355.64 is: 169,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,957.78 : 217,188.80 = 113,355.64 : x
  2. Step 2: Convert to fraction form
    144,957.78/217,188.80 = 113,355.64/x
  3. Step 3: Cross multiply
    144,957.78x = 217,188.80 × 113,355.64
  4. Step 4: Simplify right side
    144,957.78x = 24,619,575,424.83
  5. Step 5: Solve for x
    x = 24,619,575,424.83/144,957.78
  6. Step 6: Final answer
    x = 169,839.63

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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.