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Finding the Fourth Proportional to 159,564.54, 220,200.58 and 87,947.30

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Solution

The fourth proportional to 159,564.54, 220,200.58 and 87,947.30 is: 121,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,564.54 : 220,200.58 = 87,947.30 : x
  2. Step 2: Convert to fraction form
    159,564.54/220,200.58 = 87,947.30/x
  3. Step 3: Cross multiply
    159,564.54x = 220,200.58 × 87,947.30
  4. Step 4: Simplify right side
    159,564.54x = 19,366,046,469.43
  5. Step 5: Solve for x
    x = 19,366,046,469.43/159,564.54
  6. Step 6: Final answer
    x = 121,368.11

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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.