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Finding the Fourth Proportional to 121,008.52, 181,530.06 and 37,909

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Solution

The fourth proportional to 121,008.52, 181,530.06 and 37,909 is: 56,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,008.52 : 181,530.06 = 37,909 : x
  2. Step 2: Convert to fraction form
    121,008.52/181,530.06 = 37,909/x
  3. Step 3: Cross multiply
    121,008.52x = 181,530.06 × 37,909
  4. Step 4: Simplify right side
    121,008.52x = 6,881,623,044.54
  5. Step 5: Solve for x
    x = 6,881,623,044.54/121,008.52
  6. Step 6: Final answer
    x = 56,868.91

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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.