Home / 121,522.11-167,696.53-66,329.29

Finding the Fourth Proportional to 121,522.11, 167,696.53 and 66,329.29

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Solution

The fourth proportional to 121,522.11, 167,696.53 and 66,329.29 is: 91,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,522.11 : 167,696.53 = 66,329.29 : x
  2. Step 2: Convert to fraction form
    121,522.11/167,696.53 = 66,329.29/x
  3. Step 3: Cross multiply
    121,522.11x = 167,696.53 × 66,329.29
  4. Step 4: Simplify right side
    121,522.11x = 11,123,191,770.36
  5. Step 5: Solve for x
    x = 11,123,191,770.36/121,522.11
  6. Step 6: Final answer
    x = 91,532.25

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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.