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Finding the Fourth Proportional to 183,521.52, 252,991.62 and 129,711.60

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Solution

The fourth proportional to 183,521.52, 252,991.62 and 129,711.60 is: 178,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,521.52 : 252,991.62 = 129,711.60 : x
  2. Step 2: Convert to fraction form
    183,521.52/252,991.62 = 129,711.60/x
  3. Step 3: Cross multiply
    183,521.52x = 252,991.62 × 129,711.60
  4. Step 4: Simplify right side
    183,521.52x = 32,815,947,816.79
  5. Step 5: Solve for x
    x = 32,815,947,816.79/183,521.52
  6. Step 6: Final answer
    x = 178,812.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.