Home / 111,687.28-167,530.56-45,126.61

Finding the Fourth Proportional to 111,687.28, 167,530.56 and 45,126.61

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Solution

The fourth proportional to 111,687.28, 167,530.56 and 45,126.61 is: 67,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,687.28 : 167,530.56 = 45,126.61 : x
  2. Step 2: Convert to fraction form
    111,687.28/167,530.56 = 45,126.61/x
  3. Step 3: Cross multiply
    111,687.28x = 167,530.56 × 45,126.61
  4. Step 4: Simplify right side
    111,687.28x = 7,560,086,852.35
  5. Step 5: Solve for x
    x = 7,560,086,852.35/111,687.28
  6. Step 6: Final answer
    x = 67,689.77

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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.