Home / 115,922.08-159,972.24-65,625.76

Finding the Fourth Proportional to 115,922.08, 159,972.24 and 65,625.76

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Solution

The fourth proportional to 115,922.08, 159,972.24 and 65,625.76 is: 90,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,922.08 : 159,972.24 = 65,625.76 : x
  2. Step 2: Convert to fraction form
    115,922.08/159,972.24 = 65,625.76/x
  3. Step 3: Cross multiply
    115,922.08x = 159,972.24 × 65,625.76
  4. Step 4: Simplify right side
    115,922.08x = 10,498,299,828.90
  5. Step 5: Solve for x
    x = 10,498,299,828.90/115,922.08
  6. Step 6: Final answer
    x = 90,563.42

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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.