Home / 203,895.56-281,278.22-143,499.72

Finding the Fourth Proportional to 203,895.56, 281,278.22 and 143,499.72

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Solution

The fourth proportional to 203,895.56, 281,278.22 and 143,499.72 is: 197,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,895.56 : 281,278.22 = 143,499.72 : x
  2. Step 2: Convert to fraction form
    203,895.56/281,278.22 = 143,499.72/x
  3. Step 3: Cross multiply
    203,895.56x = 281,278.22 × 143,499.72
  4. Step 4: Simplify right side
    203,895.56x = 40,363,345,812.10
  5. Step 5: Solve for x
    x = 40,363,345,812.10/203,895.56
  6. Step 6: Final answer
    x = 197,960.89

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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.