Home / 157,997.24-218,031.48-86,375.82

Finding the Fourth Proportional to 157,997.24, 218,031.48 and 86,375.82

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Solution

The fourth proportional to 157,997.24, 218,031.48 and 86,375.82 is: 119,196.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,997.24 : 218,031.48 = 86,375.82 : x
  2. Step 2: Convert to fraction form
    157,997.24/218,031.48 = 86,375.82/x
  3. Step 3: Cross multiply
    157,997.24x = 218,031.48 × 86,375.82
  4. Step 4: Simplify right side
    157,997.24x = 18,832,647,870.81
  5. Step 5: Solve for x
    x = 18,832,647,870.81/157,997.24
  6. Step 6: Final answer
    x = 119,196.06

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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.