Home / 121,440.53-167,580.02-66,989.42

Finding the Fourth Proportional to 121,440.53, 167,580.02 and 66,989.42

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Solution

The fourth proportional to 121,440.53, 167,580.02 and 66,989.42 is: 92,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,440.53 : 167,580.02 = 66,989.42 : x
  2. Step 2: Convert to fraction form
    121,440.53/167,580.02 = 66,989.42/x
  3. Step 3: Cross multiply
    121,440.53x = 167,580.02 × 66,989.42
  4. Step 4: Simplify right side
    121,440.53x = 11,226,087,170.54
  5. Step 5: Solve for x
    x = 11,226,087,170.54/121,440.53
  6. Step 6: Final answer
    x = 92,441.03

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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.