Home / 147,508.38-203,561.28-80,440.38

Finding the Fourth Proportional to 147,508.38, 203,561.28 and 80,440.38

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Solution

The fourth proportional to 147,508.38, 203,561.28 and 80,440.38 is: 111,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,508.38 : 203,561.28 = 80,440.38 : x
  2. Step 2: Convert to fraction form
    147,508.38/203,561.28 = 80,440.38/x
  3. Step 3: Cross multiply
    147,508.38x = 203,561.28 × 80,440.38
  4. Step 4: Simplify right side
    147,508.38x = 16,374,546,716.49
  5. Step 5: Solve for x
    x = 16,374,546,716.49/147,508.38
  6. Step 6: Final answer
    x = 111,007.57

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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.