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Finding the Fourth Proportional to 159,767.40, 220,479.03 and 88,147.59

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Solution

The fourth proportional to 159,767.40, 220,479.03 and 88,147.59 is: 121,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,767.40 : 220,479.03 = 88,147.59 : x
  2. Step 2: Convert to fraction form
    159,767.40/220,479.03 = 88,147.59/x
  3. Step 3: Cross multiply
    159,767.40x = 220,479.03 × 88,147.59
  4. Step 4: Simplify right side
    159,767.40x = 19,434,695,140.04
  5. Step 5: Solve for x
    x = 19,434,695,140.04/159,767.40
  6. Step 6: Final answer
    x = 121,643.68

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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.