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Finding the Fourth Proportional to 83,412.70, 125,119.05 and 83,412.70

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Solution

The fourth proportional to 83,412.70, 125,119.05 and 83,412.70 is: 125,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.70 : 125,119.05 = 83,412.70 : x
  2. Step 2: Convert to fraction form
    83,412.70/125,119.05 = 83,412.70/x
  3. Step 3: Cross multiply
    83,412.70x = 125,119.05 × 83,412.70
  4. Step 4: Simplify right side
    83,412.70x = 10,436,517,781.94
  5. Step 5: Solve for x
    x = 10,436,517,781.94/83,412.70
  6. Step 6: Final answer
    x = 125,119.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.