Home / 121,201.74-167,257.98-67,487.40

Finding the Fourth Proportional to 121,201.74, 167,257.98 and 67,487.40

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Solution

The fourth proportional to 121,201.74, 167,257.98 and 67,487.40 is: 93,132.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,201.74 : 167,257.98 = 67,487.40 : x
  2. Step 2: Convert to fraction form
    121,201.74/167,257.98 = 67,487.40/x
  3. Step 3: Cross multiply
    121,201.74x = 167,257.98 × 67,487.40
  4. Step 4: Simplify right side
    121,201.74x = 11,287,806,199.45
  5. Step 5: Solve for x
    x = 11,287,806,199.45/121,201.74
  6. Step 6: Final answer
    x = 93,132.38

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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.