Home / 120,831.03-166,679.73-112,278.15

Finding the Fourth Proportional to 120,831.03, 166,679.73 and 112,278.15

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Solution

The fourth proportional to 120,831.03, 166,679.73 and 112,278.15 is: 154,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,831.03 : 166,679.73 = 112,278.15 : x
  2. Step 2: Convert to fraction form
    120,831.03/166,679.73 = 112,278.15/x
  3. Step 3: Cross multiply
    120,831.03x = 166,679.73 × 112,278.15
  4. Step 4: Simplify right side
    120,831.03x = 18,714,491,726.90
  5. Step 5: Solve for x
    x = 18,714,491,726.90/120,831.03
  6. Step 6: Final answer
    x = 154,881.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.