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Finding the Fourth Proportional to 151,859.76, 209,550.96 and 88,211.04

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Solution

The fourth proportional to 151,859.76, 209,550.96 and 88,211.04 is: 121,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,859.76 : 209,550.96 = 88,211.04 : x
  2. Step 2: Convert to fraction form
    151,859.76/209,550.96 = 88,211.04/x
  3. Step 3: Cross multiply
    151,859.76x = 209,550.96 × 88,211.04
  4. Step 4: Simplify right side
    151,859.76x = 18,484,708,114.60
  5. Step 5: Solve for x
    x = 18,484,708,114.60/151,859.76
  6. Step 6: Final answer
    x = 121,722.23

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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.