Home / 140,137.86-193,394.52-79,717.26

Finding the Fourth Proportional to 140,137.86, 193,394.52 and 79,717.26

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Solution

The fourth proportional to 140,137.86, 193,394.52 and 79,717.26 is: 110,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,137.86 : 193,394.52 = 79,717.26 : x
  2. Step 2: Convert to fraction form
    140,137.86/193,394.52 = 79,717.26/x
  3. Step 3: Cross multiply
    140,137.86x = 193,394.52 × 79,717.26
  4. Step 4: Simplify right side
    140,137.86x = 15,416,881,233.42
  5. Step 5: Solve for x
    x = 15,416,881,233.42/140,137.86
  6. Step 6: Final answer
    x = 110,012.25

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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.