Home / 121,135.68-167,169.96-67,426.20

Finding the Fourth Proportional to 121,135.68, 167,169.96 and 67,426.20

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Solution

The fourth proportional to 121,135.68, 167,169.96 and 67,426.20 is: 93,049.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,135.68 : 167,169.96 = 67,426.20 : x
  2. Step 2: Convert to fraction form
    121,135.68/167,169.96 = 67,426.20/x
  3. Step 3: Cross multiply
    121,135.68x = 167,169.96 × 67,426.20
  4. Step 4: Simplify right side
    121,135.68x = 11,271,635,156.95
  5. Step 5: Solve for x
    x = 11,271,635,156.95/121,135.68
  6. Step 6: Final answer
    x = 93,049.67

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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.