Home / 203,319.11-280,581.10-112,676.63

Finding the Fourth Proportional to 203,319.11, 280,581.10 and 112,676.63

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Solution

The fourth proportional to 203,319.11, 280,581.10 and 112,676.63 is: 155,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,319.11 : 280,581.10 = 112,676.63 : x
  2. Step 2: Convert to fraction form
    203,319.11/280,581.10 = 112,676.63/x
  3. Step 3: Cross multiply
    203,319.11x = 280,581.10 × 112,676.63
  4. Step 4: Simplify right side
    203,319.11x = 31,614,931,105.10
  5. Step 5: Solve for x
    x = 31,614,931,105.10/203,319.11
  6. Step 6: Final answer
    x = 155,494.14

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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.