Home / 121,225.28-167,278.91-67,515.29

Finding the Fourth Proportional to 121,225.28, 167,278.91 and 67,515.29

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Solution

The fourth proportional to 121,225.28, 167,278.91 and 67,515.29 is: 93,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,225.28 : 167,278.91 = 67,515.29 : x
  2. Step 2: Convert to fraction form
    121,225.28/167,278.91 = 67,515.29/x
  3. Step 3: Cross multiply
    121,225.28x = 167,278.91 × 67,515.29
  4. Step 4: Simplify right side
    121,225.28x = 11,293,883,572.86
  5. Step 5: Solve for x
    x = 11,293,883,572.86/121,225.28
  6. Step 6: Final answer
    x = 93,164.43

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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.