Home / 140,067.59-193,294.67-76,406.72

Finding the Fourth Proportional to 140,067.59, 193,294.67 and 76,406.72

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Solution

The fourth proportional to 140,067.59, 193,294.67 and 76,406.72 is: 105,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,067.59 : 193,294.67 = 76,406.72 : x
  2. Step 2: Convert to fraction form
    140,067.59/193,294.67 = 76,406.72/x
  3. Step 3: Cross multiply
    140,067.59x = 193,294.67 × 76,406.72
  4. Step 4: Simplify right side
    140,067.59x = 14,769,010,379.68
  5. Step 5: Solve for x
    x = 14,769,010,379.68/140,067.59
  6. Step 6: Final answer
    x = 105,442.03

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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.