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Finding the Fourth Proportional to 121,598.67, 167,799.18 and 67,887.10

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Solution

The fourth proportional to 121,598.67, 167,799.18 and 67,887.10 is: 93,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,598.67 : 167,799.18 = 67,887.10 : x
  2. Step 2: Convert to fraction form
    121,598.67/167,799.18 = 67,887.10/x
  3. Step 3: Cross multiply
    121,598.67x = 167,799.18 × 67,887.10
  4. Step 4: Simplify right side
    121,598.67x = 11,391,399,712.58
  5. Step 5: Solve for x
    x = 11,391,399,712.58/121,598.67
  6. Step 6: Final answer
    x = 93,680.30

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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.