Home / 140,426.40-193,788.48-76,764.18

Finding the Fourth Proportional to 140,426.40, 193,788.48 and 76,764.18

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Solution

The fourth proportional to 140,426.40, 193,788.48 and 76,764.18 is: 105,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,426.40 : 193,788.48 = 76,764.18 : x
  2. Step 2: Convert to fraction form
    140,426.40/193,788.48 = 76,764.18/x
  3. Step 3: Cross multiply
    140,426.40x = 193,788.48 × 76,764.18
  4. Step 4: Simplify right side
    140,426.40x = 14,876,013,760.65
  5. Step 5: Solve for x
    x = 14,876,013,760.65/140,426.40
  6. Step 6: Final answer
    x = 105,934.59

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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.