Home / 140,092.40-193,319.60-79,677.72

Finding the Fourth Proportional to 140,092.40, 193,319.60 and 79,677.72

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Solution

The fourth proportional to 140,092.40, 193,319.60 and 79,677.72 is: 109,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,092.40 : 193,319.60 = 79,677.72 : x
  2. Step 2: Convert to fraction form
    140,092.40/193,319.60 = 79,677.72/x
  3. Step 3: Cross multiply
    140,092.40x = 193,319.60 × 79,677.72
  4. Step 4: Simplify right side
    140,092.40x = 15,403,264,959.31
  5. Step 5: Solve for x
    x = 15,403,264,959.31/140,092.40
  6. Step 6: Final answer
    x = 109,950.75

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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.