Home / 121,155.31-167,199.24-67,436.92

Finding the Fourth Proportional to 121,155.31, 167,199.24 and 67,436.92

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Solution

The fourth proportional to 121,155.31, 167,199.24 and 67,436.92 is: 93,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,155.31 : 167,199.24 = 67,436.92 : x
  2. Step 2: Convert to fraction form
    121,155.31/167,199.24 = 67,436.92/x
  3. Step 3: Cross multiply
    121,155.31x = 167,199.24 × 67,436.92
  4. Step 4: Simplify right side
    121,155.31x = 11,275,401,771.94
  5. Step 5: Solve for x
    x = 11,275,401,771.94/121,155.31
  6. Step 6: Final answer
    x = 93,065.68

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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.