Home / 111,118.92-153,340.20-63,387.54

Finding the Fourth Proportional to 111,118.92, 153,340.20 and 63,387.54

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Solution

The fourth proportional to 111,118.92, 153,340.20 and 63,387.54 is: 87,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,118.92 : 153,340.20 = 63,387.54 : x
  2. Step 2: Convert to fraction form
    111,118.92/153,340.20 = 63,387.54/x
  3. Step 3: Cross multiply
    111,118.92x = 153,340.20 × 63,387.54
  4. Step 4: Simplify right side
    111,118.92x = 9,719,858,061.11
  5. Step 5: Solve for x
    x = 9,719,858,061.11/111,118.92
  6. Step 6: Final answer
    x = 87,472.57

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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.