Home / 121,440.98-167,609.04-89,701.94

Finding the Fourth Proportional to 121,440.98, 167,609.04 and 89,701.94

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Solution

The fourth proportional to 121,440.98, 167,609.04 and 89,701.94 is: 123,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,440.98 : 167,609.04 = 89,701.94 : x
  2. Step 2: Convert to fraction form
    121,440.98/167,609.04 = 89,701.94/x
  3. Step 3: Cross multiply
    121,440.98x = 167,609.04 × 89,701.94
  4. Step 4: Simplify right side
    121,440.98x = 15,034,856,049.54
  5. Step 5: Solve for x
    x = 15,034,856,049.54/121,440.98
  6. Step 6: Final answer
    x = 123,803.81

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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.