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Finding the Fourth Proportional to 110,909.76, 166,381.92 and 66,526.08

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Solution

The fourth proportional to 110,909.76, 166,381.92 and 66,526.08 is: 99,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,909.76 : 166,381.92 = 66,526.08 : x
  2. Step 2: Convert to fraction form
    110,909.76/166,381.92 = 66,526.08/x
  3. Step 3: Cross multiply
    110,909.76x = 166,381.92 × 66,526.08
  4. Step 4: Simplify right side
    110,909.76x = 11,068,736,920.47
  5. Step 5: Solve for x
    x = 11,068,736,920.47/110,909.76
  6. Step 6: Final answer
    x = 99,799.48

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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.