Home / 137,201.67-189,278.24-80,587.53

Finding the Fourth Proportional to 137,201.67, 189,278.24 and 80,587.53

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Solution

The fourth proportional to 137,201.67, 189,278.24 and 80,587.53 is: 111,175.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,201.67 : 189,278.24 = 80,587.53 : x
  2. Step 2: Convert to fraction form
    137,201.67/189,278.24 = 80,587.53/x
  3. Step 3: Cross multiply
    137,201.67x = 189,278.24 × 80,587.53
  4. Step 4: Simplify right side
    137,201.67x = 15,253,465,441.41
  5. Step 5: Solve for x
    x = 15,253,465,441.41/137,201.67
  6. Step 6: Final answer
    x = 111,175.51

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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.