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Finding the Fourth Proportional to 159,487.33, 220,102.43 and 87,867.33

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Solution

The fourth proportional to 159,487.33, 220,102.43 and 87,867.33 is: 121,262.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487.33 : 220,102.43 = 87,867.33 : x
  2. Step 2: Convert to fraction form
    159,487.33/220,102.43 = 87,867.33/x
  3. Step 3: Cross multiply
    159,487.33x = 220,102.43 × 87,867.33
  4. Step 4: Simplify right side
    159,487.33x = 19,339,812,850.61
  5. Step 5: Solve for x
    x = 19,339,812,850.61/159,487.33
  6. Step 6: Final answer
    x = 121,262.38

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1.5x scale

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.