Home / 121,404.60-167,537.70-67,690.26

Finding the Fourth Proportional to 121,404.60, 167,537.70 and 67,690.26

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Solution

The fourth proportional to 121,404.60, 167,537.70 and 67,690.26 is: 93,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,404.60 : 167,537.70 = 67,690.26 : x
  2. Step 2: Convert to fraction form
    121,404.60/167,537.70 = 67,690.26/x
  3. Step 3: Cross multiply
    121,404.60x = 167,537.70 × 67,690.26
  4. Step 4: Simplify right side
    121,404.60x = 11,340,670,472.80
  5. Step 5: Solve for x
    x = 11,340,670,472.80/121,404.60
  6. Step 6: Final answer
    x = 93,412.20

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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.