Home / 102,131.18-153,196.79-27,251.61

Finding the Fourth Proportional to 102,131.18, 153,196.79 and 27,251.61

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Solution

The fourth proportional to 102,131.18, 153,196.79 and 27,251.61 is: 40,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131.18 : 153,196.79 = 27,251.61 : x
  2. Step 2: Convert to fraction form
    102,131.18/153,196.79 = 27,251.61/x
  3. Step 3: Cross multiply
    102,131.18x = 153,196.79 × 27,251.61
  4. Step 4: Simplify right side
    102,131.18x = 4,174,859,038.07
  5. Step 5: Solve for x
    x = 4,174,859,038.07/102,131.18
  6. Step 6: Final answer
    x = 40,877.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.