Home / 121,398.75-167,532.37-67,677.83

Finding the Fourth Proportional to 121,398.75, 167,532.37 and 67,677.83

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Solution

The fourth proportional to 121,398.75, 167,532.37 and 67,677.83 is: 93,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,398.75 : 167,532.37 = 67,677.83 : x
  2. Step 2: Convert to fraction form
    121,398.75/167,532.37 = 67,677.83/x
  3. Step 3: Cross multiply
    121,398.75x = 167,532.37 × 67,677.83
  4. Step 4: Simplify right side
    121,398.75x = 11,338,226,877.75
  5. Step 5: Solve for x
    x = 11,338,226,877.75/121,398.75
  6. Step 6: Final answer
    x = 93,396.57

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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.