Home / 124,831.80-187,247.70-112,390.20

Finding the Fourth Proportional to 124,831.80, 187,247.70 and 112,390.20

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Solution

The fourth proportional to 124,831.80, 187,247.70 and 112,390.20 is: 168,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,831.80 : 187,247.70 = 112,390.20 : x
  2. Step 2: Convert to fraction form
    124,831.80/187,247.70 = 112,390.20/x
  3. Step 3: Cross multiply
    124,831.80x = 187,247.70 × 112,390.20
  4. Step 4: Simplify right side
    124,831.80x = 21,044,806,452.54
  5. Step 5: Solve for x
    x = 21,044,806,452.54/124,831.80
  6. Step 6: Final answer
    x = 168,585.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.