Home / 230,016.23-317,456.28-138,141.71

Finding the Fourth Proportional to 230,016.23, 317,456.28 and 138,141.71

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Solution

The fourth proportional to 230,016.23, 317,456.28 and 138,141.71 is: 190,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,016.23 : 317,456.28 = 138,141.71 : x
  2. Step 2: Convert to fraction form
    230,016.23/317,456.28 = 138,141.71/x
  3. Step 3: Cross multiply
    230,016.23x = 317,456.28 × 138,141.71
  4. Step 4: Simplify right side
    230,016.23x = 43,853,951,782.16
  5. Step 5: Solve for x
    x = 43,853,951,782.16/230,016.23
  6. Step 6: Final answer
    x = 190,655.91

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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.