Home / 120,549.42-166,354.54-66,831.30

Finding the Fourth Proportional to 120,549.42, 166,354.54 and 66,831.30

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Solution

The fourth proportional to 120,549.42, 166,354.54 and 66,831.30 is: 92,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,549.42 : 166,354.54 = 66,831.30 : x
  2. Step 2: Convert to fraction form
    120,549.42/166,354.54 = 66,831.30/x
  3. Step 3: Cross multiply
    120,549.42x = 166,354.54 × 66,831.30
  4. Step 4: Simplify right side
    120,549.42x = 11,117,690,169.10
  5. Step 5: Solve for x
    x = 11,117,690,169.10/120,549.42
  6. Step 6: Final answer
    x = 92,225.17

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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.