Home / 112,132.28-154,747.50-64,387.64

Finding the Fourth Proportional to 112,132.28, 154,747.50 and 64,387.64

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Solution

The fourth proportional to 112,132.28, 154,747.50 and 64,387.64 is: 88,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,132.28 : 154,747.50 = 64,387.64 : x
  2. Step 2: Convert to fraction form
    112,132.28/154,747.50 = 64,387.64/x
  3. Step 3: Cross multiply
    112,132.28x = 154,747.50 × 64,387.64
  4. Step 4: Simplify right side
    112,132.28x = 9,963,826,320.90
  5. Step 5: Solve for x
    x = 9,963,826,320.90/112,132.28
  6. Step 6: Final answer
    x = 88,857.79

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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.