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Finding the Fourth Proportional to 111,229.28, 153,465.84 and 63,465.44

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Solution

The fourth proportional to 111,229.28, 153,465.84 and 63,465.44 is: 87,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,229.28 : 153,465.84 = 63,465.44 : x
  2. Step 2: Convert to fraction form
    111,229.28/153,465.84 = 63,465.44/x
  3. Step 3: Cross multiply
    111,229.28x = 153,465.84 × 63,465.44
  4. Step 4: Simplify right side
    111,229.28x = 9,739,777,060.57
  5. Step 5: Solve for x
    x = 9,739,777,060.57/111,229.28
  6. Step 6: Final answer
    x = 87,564.87

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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.