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Finding the Fourth Proportional to 121,479.71, 182,220.78 and 42,595.83

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Solution

The fourth proportional to 121,479.71, 182,220.78 and 42,595.83 is: 63,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479.71 : 182,220.78 = 42,595.83 : x
  2. Step 2: Convert to fraction form
    121,479.71/182,220.78 = 42,595.83/x
  3. Step 3: Cross multiply
    121,479.71x = 182,220.78 × 42,595.83
  4. Step 4: Simplify right side
    121,479.71x = 7,761,845,367.35
  5. Step 5: Solve for x
    x = 7,761,845,367.35/121,479.71
  6. Step 6: Final answer
    x = 63,894.17

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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.