Home / 104,119.60-156,156-47,905.78

Finding the Fourth Proportional to 104,119.60, 156,156 and 47,905.78

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Solution

The fourth proportional to 104,119.60, 156,156 and 47,905.78 is: 71,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,119.60 : 156,156 = 47,905.78 : x
  2. Step 2: Convert to fraction form
    104,119.60/156,156 = 47,905.78/x
  3. Step 3: Cross multiply
    104,119.60x = 156,156 × 47,905.78
  4. Step 4: Simplify right side
    104,119.60x = 7,480,774,981.68
  5. Step 5: Solve for x
    x = 7,480,774,981.68/104,119.60
  6. Step 6: Final answer
    x = 71,847.90

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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.