Home / 159,239.12-219,759.28-91,277.15

Finding the Fourth Proportional to 159,239.12, 219,759.28 and 91,277.15

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Solution

The fourth proportional to 159,239.12, 219,759.28 and 91,277.15 is: 125,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,239.12 : 219,759.28 = 91,277.15 : x
  2. Step 2: Convert to fraction form
    159,239.12/219,759.28 = 91,277.15/x
  3. Step 3: Cross multiply
    159,239.12x = 219,759.28 × 91,277.15
  4. Step 4: Simplify right side
    159,239.12x = 20,058,999,437.46
  5. Step 5: Solve for x
    x = 20,058,999,437.46/159,239.12
  6. Step 6: Final answer
    x = 125,967.79

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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.