Home / 136,831.56-205,278.12-48,091.20

Finding the Fourth Proportional to 136,831.56, 205,278.12 and 48,091.20

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Solution

The fourth proportional to 136,831.56, 205,278.12 and 48,091.20 is: 72,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,831.56 : 205,278.12 = 48,091.20 : x
  2. Step 2: Convert to fraction form
    136,831.56/205,278.12 = 48,091.20/x
  3. Step 3: Cross multiply
    136,831.56x = 205,278.12 × 48,091.20
  4. Step 4: Simplify right side
    136,831.56x = 9,872,071,124.54
  5. Step 5: Solve for x
    x = 9,872,071,124.54/136,831.56
  6. Step 6: Final answer
    x = 72,147.62

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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.