Home / 203,002.75-280,139.60-112,353.31

Finding the Fourth Proportional to 203,002.75, 280,139.60 and 112,353.31

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Solution

The fourth proportional to 203,002.75, 280,139.60 and 112,353.31 is: 155,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,002.75 : 280,139.60 = 112,353.31 : x
  2. Step 2: Convert to fraction form
    203,002.75/280,139.60 = 112,353.31/x
  3. Step 3: Cross multiply
    203,002.75x = 280,139.60 × 112,353.31
  4. Step 4: Simplify right side
    203,002.75x = 31,474,609,921.38
  5. Step 5: Solve for x
    x = 31,474,609,921.38/203,002.75
  6. Step 6: Final answer
    x = 155,045.24

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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.