Home / 103,478.72-155,310.24-48,105.92

Finding the Fourth Proportional to 103,478.72, 155,310.24 and 48,105.92

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Solution

The fourth proportional to 103,478.72, 155,310.24 and 48,105.92 is: 72,201.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,478.72 : 155,310.24 = 48,105.92 : x
  2. Step 2: Convert to fraction form
    103,478.72/155,310.24 = 48,105.92/x
  3. Step 3: Cross multiply
    103,478.72x = 155,310.24 × 48,105.92
  4. Step 4: Simplify right side
    103,478.72x = 7,471,341,980.62
  5. Step 5: Solve for x
    x = 7,471,341,980.62/103,478.72
  6. Step 6: Final answer
    x = 72,201.72

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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.