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Finding the Fourth Proportional to 151,355.58, 208,652.49 and 105,892.71

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Solution

The fourth proportional to 151,355.58, 208,652.49 and 105,892.71 is: 145,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,355.58 : 208,652.49 = 105,892.71 : x
  2. Step 2: Convert to fraction form
    151,355.58/208,652.49 = 105,892.71/x
  3. Step 3: Cross multiply
    151,355.58x = 208,652.49 × 105,892.71
  4. Step 4: Simplify right side
    151,355.58x = 22,094,777,614.35
  5. Step 5: Solve for x
    x = 22,094,777,614.35/151,355.58
  6. Step 6: Final answer
    x = 145,979.27

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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.