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Finding the Fourth Proportional to 103,073.49, 154,614.89 and 28,191.96

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Solution

The fourth proportional to 103,073.49, 154,614.89 and 28,191.96 is: 42,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,073.49 : 154,614.89 = 28,191.96 : x
  2. Step 2: Convert to fraction form
    103,073.49/154,614.89 = 28,191.96/x
  3. Step 3: Cross multiply
    103,073.49x = 154,614.89 × 28,191.96
  4. Step 4: Simplify right side
    103,073.49x = 4,358,896,864.76
  5. Step 5: Solve for x
    x = 4,358,896,864.76/103,073.49
  6. Step 6: Final answer
    x = 42,289.21

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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.