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Finding the Fourth Proportional to 121,397.61, 182,117.95 and 37,155.91

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Solution

The fourth proportional to 121,397.61, 182,117.95 and 37,155.91 is: 55,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,397.61 : 182,117.95 = 37,155.91 : x
  2. Step 2: Convert to fraction form
    121,397.61/182,117.95 = 37,155.91/x
  3. Step 3: Cross multiply
    121,397.61x = 182,117.95 × 37,155.91
  4. Step 4: Simplify right side
    121,397.61x = 6,766,758,159.58
  5. Step 5: Solve for x
    x = 6,766,758,159.58/121,397.61
  6. Step 6: Final answer
    x = 55,740.46

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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.