Home / 151,713.08-209,375.94-83,743.56

Finding the Fourth Proportional to 151,713.08, 209,375.94 and 83,743.56

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Solution

The fourth proportional to 151,713.08, 209,375.94 and 83,743.56 is: 115,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,713.08 : 209,375.94 = 83,743.56 : x
  2. Step 2: Convert to fraction form
    151,713.08/209,375.94 = 83,743.56/x
  3. Step 3: Cross multiply
    151,713.08x = 209,375.94 × 83,743.56
  4. Step 4: Simplify right side
    151,713.08x = 17,533,886,593.95
  5. Step 5: Solve for x
    x = 17,533,886,593.95/151,713.08
  6. Step 6: Final answer
    x = 115,572.68

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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.