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Finding the Fourth Proportional to 121,353.66, 167,473.26 and 67,638.66

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Solution

The fourth proportional to 121,353.66, 167,473.26 and 67,638.66 is: 93,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,353.66 : 167,473.26 = 67,638.66 : x
  2. Step 2: Convert to fraction form
    121,353.66/167,473.26 = 67,638.66/x
  3. Step 3: Cross multiply
    121,353.66x = 167,473.26 × 67,638.66
  4. Step 4: Simplify right side
    121,353.66x = 11,327,666,892.23
  5. Step 5: Solve for x
    x = 11,327,666,892.23/121,353.66
  6. Step 6: Final answer
    x = 93,344.25

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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.