Home / 140,631.07-211,699.76-126,164.06

Finding the Fourth Proportional to 140,631.07, 211,699.76 and 126,164.06

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Solution

The fourth proportional to 140,631.07, 211,699.76 and 126,164.06 is: 189,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631.07 : 211,699.76 = 126,164.06 : x
  2. Step 2: Convert to fraction form
    140,631.07/211,699.76 = 126,164.06/x
  3. Step 3: Cross multiply
    140,631.07x = 211,699.76 × 126,164.06
  4. Step 4: Simplify right side
    140,631.07x = 26,708,902,067.29
  5. Step 5: Solve for x
    x = 26,708,902,067.29/140,631.07
  6. Step 6: Final answer
    x = 189,921.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.