Home / 125,220.90-187,831.35-111,442.80

Finding the Fourth Proportional to 125,220.90, 187,831.35 and 111,442.80

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Solution

The fourth proportional to 125,220.90, 187,831.35 and 111,442.80 is: 167,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,220.90 : 187,831.35 = 111,442.80 : x
  2. Step 2: Convert to fraction form
    125,220.90/187,831.35 = 111,442.80/x
  3. Step 3: Cross multiply
    125,220.90x = 187,831.35 × 111,442.80
  4. Step 4: Simplify right side
    125,220.90x = 20,932,451,571.78
  5. Step 5: Solve for x
    x = 20,932,451,571.78/125,220.90
  6. Step 6: Final answer
    x = 167,164.20

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1.5x scale

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.