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Finding the Fourth Proportional to 159,543.90, 220,170.07 and 87,923.90

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Solution

The fourth proportional to 159,543.90, 220,170.07 and 87,923.90 is: 121,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,543.90 : 220,170.07 = 87,923.90 : x
  2. Step 2: Convert to fraction form
    159,543.90/220,170.07 = 87,923.90/x
  3. Step 3: Cross multiply
    159,543.90x = 220,170.07 × 87,923.90
  4. Step 4: Simplify right side
    159,543.90x = 19,358,211,217.67
  5. Step 5: Solve for x
    x = 19,358,211,217.67/159,543.90
  6. Step 6: Final answer
    x = 121,334.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.