Home / 103,565.20-142,767.84-73,257.16

Finding the Fourth Proportional to 103,565.20, 142,767.84 and 73,257.16

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Solution

The fourth proportional to 103,565.20, 142,767.84 and 73,257.16 is: 100,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,565.20 : 142,767.84 = 73,257.16 : x
  2. Step 2: Convert to fraction form
    103,565.20/142,767.84 = 73,257.16/x
  3. Step 3: Cross multiply
    103,565.20x = 142,767.84 × 73,257.16
  4. Step 4: Simplify right side
    103,565.20x = 10,458,766,497.73
  5. Step 5: Solve for x
    x = 10,458,766,497.73/103,565.20
  6. Step 6: Final answer
    x = 100,987.27

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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.