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Finding the Fourth Proportional to 169,770.84, 254,711.43 and 81,012.90

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Solution

The fourth proportional to 169,770.84, 254,711.43 and 81,012.90 is: 121,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,770.84 : 254,711.43 = 81,012.90 : x
  2. Step 2: Convert to fraction form
    169,770.84/254,711.43 = 81,012.90/x
  3. Step 3: Cross multiply
    169,770.84x = 254,711.43 × 81,012.90
  4. Step 4: Simplify right side
    169,770.84x = 20,634,911,607.45
  5. Step 5: Solve for x
    x = 20,634,911,607.45/169,770.84
  6. Step 6: Final answer
    x = 121,545.68

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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.