Home / 151,239.72-208,713.48-82,331.18

Finding the Fourth Proportional to 151,239.72, 208,713.48 and 82,331.18

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Solution

The fourth proportional to 151,239.72, 208,713.48 and 82,331.18 is: 113,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,239.72 : 208,713.48 = 82,331.18 : x
  2. Step 2: Convert to fraction form
    151,239.72/208,713.48 = 82,331.18/x
  3. Step 3: Cross multiply
    151,239.72x = 208,713.48 × 82,331.18
  4. Step 4: Simplify right side
    151,239.72x = 17,183,626,252.57
  5. Step 5: Solve for x
    x = 17,183,626,252.57/151,239.72
  6. Step 6: Final answer
    x = 113,618.48

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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.