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Finding the Fourth Proportional to 159,467.06, 220,064.55 and 87,847.04

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Solution

The fourth proportional to 159,467.06, 220,064.55 and 87,847.04 is: 121,228.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,467.06 : 220,064.55 = 87,847.04 : x
  2. Step 2: Convert to fraction form
    159,467.06/220,064.55 = 87,847.04/x
  3. Step 3: Cross multiply
    159,467.06x = 220,064.55 × 87,847.04
  4. Step 4: Simplify right side
    159,467.06x = 19,332,019,326.43
  5. Step 5: Solve for x
    x = 19,332,019,326.43/159,467.06
  6. Step 6: Final answer
    x = 121,228.92

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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.