Home / 103,889.20-155,856.92-48,454.96

Finding the Fourth Proportional to 103,889.20, 155,856.92 and 48,454.96

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Solution

The fourth proportional to 103,889.20, 155,856.92 and 48,454.96 is: 72,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,889.20 : 155,856.92 = 48,454.96 : x
  2. Step 2: Convert to fraction form
    103,889.20/155,856.92 = 48,454.96/x
  3. Step 3: Cross multiply
    103,889.20x = 155,856.92 × 48,454.96
  4. Step 4: Simplify right side
    103,889.20x = 7,552,040,824.32
  5. Step 5: Solve for x
    x = 7,552,040,824.32/103,889.20
  6. Step 6: Final answer
    x = 72,693.22

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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.