Home / 121,500.53-167,670.83-67,785.55

Finding the Fourth Proportional to 121,500.53, 167,670.83 and 67,785.55

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Solution

The fourth proportional to 121,500.53, 167,670.83 and 67,785.55 is: 93,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,500.53 : 167,670.83 = 67,785.55 : x
  2. Step 2: Convert to fraction form
    121,500.53/167,670.83 = 67,785.55/x
  3. Step 3: Cross multiply
    121,500.53x = 167,670.83 × 67,785.55
  4. Step 4: Simplify right side
    121,500.53x = 11,365,659,849.68
  5. Step 5: Solve for x
    x = 11,365,659,849.68/121,500.53
  6. Step 6: Final answer
    x = 93,544.12

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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.