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Finding the Fourth Proportional to 151,124.84, 208,608.42 and 129,818.60

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Solution

The fourth proportional to 151,124.84, 208,608.42 and 129,818.60 is: 179,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,124.84 : 208,608.42 = 129,818.60 : x
  2. Step 2: Convert to fraction form
    151,124.84/208,608.42 = 129,818.60/x
  3. Step 3: Cross multiply
    151,124.84x = 208,608.42 × 129,818.60
  4. Step 4: Simplify right side
    151,124.84x = 27,081,253,032.61
  5. Step 5: Solve for x
    x = 27,081,253,032.61/151,124.84
  6. Step 6: Final answer
    x = 179,197.89

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1.5x scale

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.