Home / 147,458.48-203,434.92-82,912.88

Finding the Fourth Proportional to 147,458.48, 203,434.92 and 82,912.88

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Solution

The fourth proportional to 147,458.48, 203,434.92 and 82,912.88 is: 114,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,458.48 : 203,434.92 = 82,912.88 : x
  2. Step 2: Convert to fraction form
    147,458.48/203,434.92 = 82,912.88/x
  3. Step 3: Cross multiply
    147,458.48x = 203,434.92 × 82,912.88
  4. Step 4: Simplify right side
    147,458.48x = 16,867,375,109.77
  5. Step 5: Solve for x
    x = 16,867,375,109.77/147,458.48
  6. Step 6: Final answer
    x = 114,387.28

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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.