Home / 140,679.72-193,999.77-129,010.11

Finding the Fourth Proportional to 140,679.72, 193,999.77 and 129,010.11

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Solution

The fourth proportional to 140,679.72, 193,999.77 and 129,010.11 is: 177,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,679.72 : 193,999.77 = 129,010.11 : x
  2. Step 2: Convert to fraction form
    140,679.72/193,999.77 = 129,010.11/x
  3. Step 3: Cross multiply
    140,679.72x = 193,999.77 × 129,010.11
  4. Step 4: Simplify right side
    140,679.72x = 25,027,931,667.67
  5. Step 5: Solve for x
    x = 25,027,931,667.67/140,679.72
  6. Step 6: Final answer
    x = 177,907.18

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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.