Home / 136,831.20-204,901.20-89,829.60

Finding the Fourth Proportional to 136,831.20, 204,901.20 and 89,829.60

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Solution

The fourth proportional to 136,831.20, 204,901.20 and 89,829.60 is: 134,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,831.20 : 204,901.20 = 89,829.60 : x
  2. Step 2: Convert to fraction form
    136,831.20/204,901.20 = 89,829.60/x
  3. Step 3: Cross multiply
    136,831.20x = 204,901.20 × 89,829.60
  4. Step 4: Simplify right side
    136,831.20x = 18,406,192,835.52
  5. Step 5: Solve for x
    x = 18,406,192,835.52/136,831.20
  6. Step 6: Final answer
    x = 134,517.51

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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.