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Finding the Fourth Proportional to 103,952.60, 155,600.85 and 100,672.10

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Solution

The fourth proportional to 103,952.60, 155,600.85 and 100,672.10 is: 150,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,952.60 : 155,600.85 = 100,672.10 : x
  2. Step 2: Convert to fraction form
    103,952.60/155,600.85 = 100,672.10/x
  3. Step 3: Cross multiply
    103,952.60x = 155,600.85 × 100,672.10
  4. Step 4: Simplify right side
    103,952.60x = 15,664,664,331.29
  5. Step 5: Solve for x
    x = 15,664,664,331.29/103,952.60
  6. Step 6: Final answer
    x = 150,690.45

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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.