Home / 151,343.25-208,853.69-87,717.96

Finding the Fourth Proportional to 151,343.25, 208,853.69 and 87,717.96

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Solution

The fourth proportional to 151,343.25, 208,853.69 and 87,717.96 is: 121,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,343.25 : 208,853.69 = 87,717.96 : x
  2. Step 2: Convert to fraction form
    151,343.25/208,853.69 = 87,717.96/x
  3. Step 3: Cross multiply
    151,343.25x = 208,853.69 × 87,717.96
  4. Step 4: Simplify right side
    151,343.25x = 18,320,219,186.68
  5. Step 5: Solve for x
    x = 18,320,219,186.68/151,343.25
  6. Step 6: Final answer
    x = 121,050.78

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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.