Home / 121,431.70-167,576.49-67,720.13

Finding the Fourth Proportional to 121,431.70, 167,576.49 and 67,720.13

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Solution

The fourth proportional to 121,431.70, 167,576.49 and 67,720.13 is: 93,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,431.70 : 167,576.49 = 67,720.13 : x
  2. Step 2: Convert to fraction form
    121,431.70/167,576.49 = 67,720.13/x
  3. Step 3: Cross multiply
    121,431.70x = 167,576.49 × 67,720.13
  4. Step 4: Simplify right side
    121,431.70x = 11,348,301,687.74
  5. Step 5: Solve for x
    x = 11,348,301,687.74/121,431.70
  6. Step 6: Final answer
    x = 93,454.19

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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.