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Finding the Fourth Proportional to 109,866.32, 151,559.88 and 69,512.12

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Solution

The fourth proportional to 109,866.32, 151,559.88 and 69,512.12 is: 95,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,866.32 : 151,559.88 = 69,512.12 : x
  2. Step 2: Convert to fraction form
    109,866.32/151,559.88 = 69,512.12/x
  3. Step 3: Cross multiply
    109,866.32x = 151,559.88 × 69,512.12
  4. Step 4: Simplify right side
    109,866.32x = 10,535,248,565.75
  5. Step 5: Solve for x
    x = 10,535,248,565.75/109,866.32
  6. Step 6: Final answer
    x = 95,891.52

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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.