Home / 153,889.38-211,893.66-131,177.43

Finding the Fourth Proportional to 153,889.38, 211,893.66 and 131,177.43

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Solution

The fourth proportional to 153,889.38, 211,893.66 and 131,177.43 is: 180,621.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,889.38 : 211,893.66 = 131,177.43 : x
  2. Step 2: Convert to fraction form
    153,889.38/211,893.66 = 131,177.43/x
  3. Step 3: Cross multiply
    153,889.38x = 211,893.66 × 131,177.43
  4. Step 4: Simplify right side
    153,889.38x = 27,795,665,752.09
  5. Step 5: Solve for x
    x = 27,795,665,752.09/153,889.38
  6. Step 6: Final answer
    x = 180,621.08

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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.