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Finding the Fourth Proportional to 103,790.32, 155,695.56 and 27,887.92

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Solution

The fourth proportional to 103,790.32, 155,695.56 and 27,887.92 is: 41,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,790.32 : 155,695.56 = 27,887.92 : x
  2. Step 2: Convert to fraction form
    103,790.32/155,695.56 = 27,887.92/x
  3. Step 3: Cross multiply
    103,790.32x = 155,695.56 × 27,887.92
  4. Step 4: Simplify right side
    103,790.32x = 4,342,025,321.64
  5. Step 5: Solve for x
    x = 4,342,025,321.64/103,790.32
  6. Step 6: Final answer
    x = 41,834.59

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1.5x scale

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.