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Finding the Fourth Proportional to 159,449.31, 220,030.16 and 87,825.33

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Solution

The fourth proportional to 159,449.31, 220,030.16 and 87,825.33 is: 121,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,449.31 : 220,030.16 = 87,825.33 : x
  2. Step 2: Convert to fraction form
    159,449.31/220,030.16 = 87,825.33/x
  3. Step 3: Cross multiply
    159,449.31x = 220,030.16 × 87,825.33
  4. Step 4: Simplify right side
    159,449.31x = 19,324,220,972.83
  5. Step 5: Solve for x
    x = 19,324,220,972.83/159,449.31
  6. Step 6: Final answer
    x = 121,193.51

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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.