Home / 203,119.72-280,305.03-112,475.68

Finding the Fourth Proportional to 203,119.72, 280,305.03 and 112,475.68

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Solution

The fourth proportional to 203,119.72, 280,305.03 and 112,475.68 is: 155,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,119.72 : 280,305.03 = 112,475.68 : x
  2. Step 2: Convert to fraction form
    203,119.72/280,305.03 = 112,475.68/x
  3. Step 3: Cross multiply
    203,119.72x = 280,305.03 × 112,475.68
  4. Step 4: Simplify right side
    203,119.72x = 31,527,498,155.91
  5. Step 5: Solve for x
    x = 31,527,498,155.91/203,119.72
  6. Step 6: Final answer
    x = 155,216.34

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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.