Home / 109,757.28-151,517.40-73,521.12

Finding the Fourth Proportional to 109,757.28, 151,517.40 and 73,521.12

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Solution

The fourth proportional to 109,757.28, 151,517.40 and 73,521.12 is: 101,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,757.28 : 151,517.40 = 73,521.12 : x
  2. Step 2: Convert to fraction form
    109,757.28/151,517.40 = 73,521.12/x
  3. Step 3: Cross multiply
    109,757.28x = 151,517.40 × 73,521.12
  4. Step 4: Simplify right side
    109,757.28x = 11,139,728,947.49
  5. Step 5: Solve for x
    x = 11,139,728,947.49/109,757.28
  6. Step 6: Final answer
    x = 101,494.21

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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.