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Finding the Fourth Proportional to 110,857.32, 152,672.10 and 103,742.12

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Solution

The fourth proportional to 110,857.32, 152,672.10 and 103,742.12 is: 142,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,857.32 : 152,672.10 = 103,742.12 : x
  2. Step 2: Convert to fraction form
    110,857.32/152,672.10 = 103,742.12/x
  3. Step 3: Cross multiply
    110,857.32x = 152,672.10 × 103,742.12
  4. Step 4: Simplify right side
    110,857.32x = 15,838,527,318.85
  5. Step 5: Solve for x
    x = 15,838,527,318.85/110,857.32
  6. Step 6: Final answer
    x = 142,873.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.