Home / 155,936.66-215,192.26-87,953.42

Finding the Fourth Proportional to 155,936.66, 215,192.26 and 87,953.42

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Solution

The fourth proportional to 155,936.66, 215,192.26 and 87,953.42 is: 121,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,936.66 : 215,192.26 = 87,953.42 : x
  2. Step 2: Convert to fraction form
    155,936.66/215,192.26 = 87,953.42/x
  3. Step 3: Cross multiply
    155,936.66x = 215,192.26 × 87,953.42
  4. Step 4: Simplify right side
    155,936.66x = 18,926,895,224.53
  5. Step 5: Solve for x
    x = 18,926,895,224.53/155,936.66
  6. Step 6: Final answer
    x = 121,375.53

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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.