Home / 147,843.28-204,024.36-80,776.72

Finding the Fourth Proportional to 147,843.28, 204,024.36 and 80,776.72

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Solution

The fourth proportional to 147,843.28, 204,024.36 and 80,776.72 is: 111,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,843.28 : 204,024.36 = 80,776.72 : x
  2. Step 2: Convert to fraction form
    147,843.28/204,024.36 = 80,776.72/x
  3. Step 3: Cross multiply
    147,843.28x = 204,024.36 × 80,776.72
  4. Step 4: Simplify right side
    147,843.28x = 16,480,418,600.90
  5. Step 5: Solve for x
    x = 16,480,418,600.90/147,843.28
  6. Step 6: Final answer
    x = 111,472.22

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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.