Home / 115,501.91-159,395.25-67,789.67

Finding the Fourth Proportional to 115,501.91, 159,395.25 and 67,789.67

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Solution

The fourth proportional to 115,501.91, 159,395.25 and 67,789.67 is: 93,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,501.91 : 159,395.25 = 67,789.67 : x
  2. Step 2: Convert to fraction form
    115,501.91/159,395.25 = 67,789.67/x
  3. Step 3: Cross multiply
    115,501.91x = 159,395.25 × 67,789.67
  4. Step 4: Simplify right side
    115,501.91x = 10,805,350,600.09
  5. Step 5: Solve for x
    x = 10,805,350,600.09/115,501.91
  6. Step 6: Final answer
    x = 93,551.28

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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.