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Finding the Fourth Proportional to 159,472, 220,081.44 and 87,852.16

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Solution

The fourth proportional to 159,472, 220,081.44 and 87,852.16 is: 121,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,472 : 220,081.44 = 87,852.16 : x
  2. Step 2: Convert to fraction form
    159,472/220,081.44 = 87,852.16/x
  3. Step 3: Cross multiply
    159,472x = 220,081.44 × 87,852.16
  4. Step 4: Simplify right side
    159,472x = 19,334,629,879.91
  5. Step 5: Solve for x
    x = 19,334,629,879.91/159,472
  6. Step 6: Final answer
    x = 121,241.53

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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.