Home / 115,578.90-159,510.36-67,831.22

Finding the Fourth Proportional to 115,578.90, 159,510.36 and 67,831.22

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Solution

The fourth proportional to 115,578.90, 159,510.36 and 67,831.22 is: 93,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,578.90 : 159,510.36 = 67,831.22 : x
  2. Step 2: Convert to fraction form
    115,578.90/159,510.36 = 67,831.22/x
  3. Step 3: Cross multiply
    115,578.90x = 159,510.36 × 67,831.22
  4. Step 4: Simplify right side
    115,578.90x = 10,819,782,974.58
  5. Step 5: Solve for x
    x = 10,819,782,974.58/115,578.90
  6. Step 6: Final answer
    x = 93,613.83

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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.