Home / 151,437.20-208,984.72-83,456.64

Finding the Fourth Proportional to 151,437.20, 208,984.72 and 83,456.64

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Solution

The fourth proportional to 151,437.20, 208,984.72 and 83,456.64 is: 115,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,437.20 : 208,984.72 = 83,456.64 : x
  2. Step 2: Convert to fraction form
    151,437.20/208,984.72 = 83,456.64/x
  3. Step 3: Cross multiply
    151,437.20x = 208,984.72 × 83,456.64
  4. Step 4: Simplify right side
    151,437.20x = 17,441,162,542.54
  5. Step 5: Solve for x
    x = 17,441,162,542.54/151,437.20
  6. Step 6: Final answer
    x = 115,170.93

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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.