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Finding the Fourth Proportional to 159,823.30, 220,557.02 and 88,203.50

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Solution

The fourth proportional to 159,823.30, 220,557.02 and 88,203.50 is: 121,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,823.30 : 220,557.02 = 88,203.50 : x
  2. Step 2: Convert to fraction form
    159,823.30/220,557.02 = 88,203.50/x
  3. Step 3: Cross multiply
    159,823.30x = 220,557.02 × 88,203.50
  4. Step 4: Simplify right side
    159,823.30x = 19,453,901,113.57
  5. Step 5: Solve for x
    x = 19,453,901,113.57/159,823.30
  6. Step 6: Final answer
    x = 121,721.31

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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.