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Finding the Fourth Proportional to 101,604.62, 140,282.87 and 63,422.32

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Solution

The fourth proportional to 101,604.62, 140,282.87 and 63,422.32 is: 87,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,604.62 : 140,282.87 = 63,422.32 : x
  2. Step 2: Convert to fraction form
    101,604.62/140,282.87 = 63,422.32/x
  3. Step 3: Cross multiply
    101,604.62x = 140,282.87 × 63,422.32
  4. Step 4: Simplify right side
    101,604.62x = 8,897,065,071.66
  5. Step 5: Solve for x
    x = 8,897,065,071.66/101,604.62
  6. Step 6: Final answer
    x = 87,565.56

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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.