Home / 124,139.20-185,990.10-101,831.80

Finding the Fourth Proportional to 124,139.20, 185,990.10 and 101,831.80

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Solution

The fourth proportional to 124,139.20, 185,990.10 and 101,831.80 is: 152,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,139.20 : 185,990.10 = 101,831.80 : x
  2. Step 2: Convert to fraction form
    124,139.20/185,990.10 = 101,831.80/x
  3. Step 3: Cross multiply
    124,139.20x = 185,990.10 × 101,831.80
  4. Step 4: Simplify right side
    124,139.20x = 18,939,706,665.18
  5. Step 5: Solve for x
    x = 18,939,706,665.18/124,139.20
  6. Step 6: Final answer
    x = 152,568.30

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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.