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Finding the Fourth Proportional to 103,773.98, 155,557.03 and 40,507.11

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Solution

The fourth proportional to 103,773.98, 155,557.03 and 40,507.11 is: 60,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,773.98 : 155,557.03 = 40,507.11 : x
  2. Step 2: Convert to fraction form
    103,773.98/155,557.03 = 40,507.11/x
  3. Step 3: Cross multiply
    103,773.98x = 155,557.03 × 40,507.11
  4. Step 4: Simplify right side
    103,773.98x = 6,301,164,947.70
  5. Step 5: Solve for x
    x = 6,301,164,947.70/103,773.98
  6. Step 6: Final answer
    x = 60,720.09

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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.