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Finding the Fourth Proportional to 159,877.90, 220,630.71 and 88,257.75

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Solution

The fourth proportional to 159,877.90, 220,630.71 and 88,257.75 is: 121,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,877.90 : 220,630.71 = 88,257.75 : x
  2. Step 2: Convert to fraction form
    159,877.90/220,630.71 = 88,257.75/x
  3. Step 3: Cross multiply
    159,877.90x = 220,630.71 × 88,257.75
  4. Step 4: Simplify right side
    159,877.90x = 19,472,370,541.93
  5. Step 5: Solve for x
    x = 19,472,370,541.93/159,877.90
  6. Step 6: Final answer
    x = 121,795.26

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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.