Home / 140,567.82-193,988.25-76,905.65

Finding the Fourth Proportional to 140,567.82, 193,988.25 and 76,905.65

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Solution

The fourth proportional to 140,567.82, 193,988.25 and 76,905.65 is: 106,132.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,567.82 : 193,988.25 = 76,905.65 : x
  2. Step 2: Convert to fraction form
    140,567.82/193,988.25 = 76,905.65/x
  3. Step 3: Cross multiply
    140,567.82x = 193,988.25 × 76,905.65
  4. Step 4: Simplify right side
    140,567.82x = 14,918,791,488.67
  5. Step 5: Solve for x
    x = 14,918,791,488.67/140,567.82
  6. Step 6: Final answer
    x = 106,132.34

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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.