Home / 153,892.38-211,897.80-131,180.43

Finding the Fourth Proportional to 153,892.38, 211,897.80 and 131,180.43

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Solution

The fourth proportional to 153,892.38, 211,897.80 and 131,180.43 is: 180,625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,892.38 : 211,897.80 = 131,180.43 : x
  2. Step 2: Convert to fraction form
    153,892.38/211,897.80 = 131,180.43/x
  3. Step 3: Cross multiply
    153,892.38x = 211,897.80 × 131,180.43
  4. Step 4: Simplify right side
    153,892.38x = 27,796,844,520.05
  5. Step 5: Solve for x
    x = 27,796,844,520.05/153,892.38
  6. Step 6: Final answer
    x = 180,625.22

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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.