Home / 121,638.71-167,861.67-67,923.56

Finding the Fourth Proportional to 121,638.71, 167,861.67 and 67,923.56

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Solution

The fourth proportional to 121,638.71, 167,861.67 and 67,923.56 is: 93,734.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,638.71 : 167,861.67 = 67,923.56 : x
  2. Step 2: Convert to fraction form
    121,638.71/167,861.67 = 67,923.56/x
  3. Step 3: Cross multiply
    121,638.71x = 167,861.67 × 67,923.56
  4. Step 4: Simplify right side
    121,638.71x = 11,401,762,378.89
  5. Step 5: Solve for x
    x = 11,401,762,378.89/121,638.71
  6. Step 6: Final answer
    x = 93,734.65

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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.