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Finding the Fourth Proportional to 159,902.75, 220,664.36 and 88,281.23

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Solution

The fourth proportional to 159,902.75, 220,664.36 and 88,281.23 is: 121,827.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,902.75 : 220,664.36 = 88,281.23 : x
  2. Step 2: Convert to fraction form
    159,902.75/220,664.36 = 88,281.23/x
  3. Step 3: Cross multiply
    159,902.75x = 220,664.36 × 88,281.23
  4. Step 4: Simplify right side
    159,902.75x = 19,480,521,117.96
  5. Step 5: Solve for x
    x = 19,480,521,117.96/159,902.75
  6. Step 6: Final answer
    x = 121,827.31

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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.