Home / 140,357.22-193,693.20-76,693.65

Finding the Fourth Proportional to 140,357.22, 193,693.20 and 76,693.65

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Solution

The fourth proportional to 140,357.22, 193,693.20 and 76,693.65 is: 105,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,357.22 : 193,693.20 = 76,693.65 : x
  2. Step 2: Convert to fraction form
    140,357.22/193,693.20 = 76,693.65/x
  3. Step 3: Cross multiply
    140,357.22x = 193,693.20 × 76,693.65
  4. Step 4: Simplify right side
    140,357.22x = 14,855,038,488.18
  5. Step 5: Solve for x
    x = 14,855,038,488.18/140,357.22
  6. Step 6: Final answer
    x = 105,837.37

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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.