Home / 115,372.28-159,215.82-67,660.04

Finding the Fourth Proportional to 115,372.28, 159,215.82 and 67,660.04

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Solution

The fourth proportional to 115,372.28, 159,215.82 and 67,660.04 is: 93,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,372.28 : 159,215.82 = 67,660.04 : x
  2. Step 2: Convert to fraction form
    115,372.28/159,215.82 = 67,660.04/x
  3. Step 3: Cross multiply
    115,372.28x = 159,215.82 × 67,660.04
  4. Step 4: Simplify right side
    115,372.28x = 10,772,548,749.83
  5. Step 5: Solve for x
    x = 10,772,548,749.83/115,372.28
  6. Step 6: Final answer
    x = 93,372.07

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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.