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Finding the Fourth Proportional to 121,174.59, 181,786.50 and 51,053.91

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Solution

The fourth proportional to 121,174.59, 181,786.50 and 51,053.91 is: 76,591.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,174.59 : 181,786.50 = 51,053.91 : x
  2. Step 2: Convert to fraction form
    121,174.59/181,786.50 = 51,053.91/x
  3. Step 3: Cross multiply
    121,174.59x = 181,786.50 × 51,053.91
  4. Step 4: Simplify right side
    121,174.59x = 9,280,910,928.52
  5. Step 5: Solve for x
    x = 9,280,910,928.52/121,174.59
  6. Step 6: Final answer
    x = 76,591.23

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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.