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Finding the Fourth Proportional to 154,171.92, 231,254.28 and 71,065.92

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Solution

The fourth proportional to 154,171.92, 231,254.28 and 71,065.92 is: 106,597.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,171.92 : 231,254.28 = 71,065.92 : x
  2. Step 2: Convert to fraction form
    154,171.92/231,254.28 = 71,065.92/x
  3. Step 3: Cross multiply
    154,171.92x = 231,254.28 × 71,065.92
  4. Step 4: Simplify right side
    154,171.92x = 16,434,298,162.14
  5. Step 5: Solve for x
    x = 16,434,298,162.14/154,171.92
  6. Step 6: Final answer
    x = 106,597.22

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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.