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Finding the Fourth Proportional to 159,899.36, 220,661.44 and 88,279.52

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Solution

The fourth proportional to 159,899.36, 220,661.44 and 88,279.52 is: 121,825.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,899.36 : 220,661.44 = 88,279.52 : x
  2. Step 2: Convert to fraction form
    159,899.36/220,661.44 = 88,279.52/x
  3. Step 3: Cross multiply
    159,899.36x = 220,661.44 × 88,279.52
  4. Step 4: Simplify right side
    159,899.36x = 19,479,884,681.70
  5. Step 5: Solve for x
    x = 19,479,884,681.70/159,899.36
  6. Step 6: Final answer
    x = 121,825.91

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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.