Home / 139,927.24-193,104.80-79,508.13

Finding the Fourth Proportional to 139,927.24, 193,104.80 and 79,508.13

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Solution

The fourth proportional to 139,927.24, 193,104.80 and 79,508.13 is: 109,724.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927.24 : 193,104.80 = 79,508.13 : x
  2. Step 2: Convert to fraction form
    139,927.24/193,104.80 = 79,508.13/x
  3. Step 3: Cross multiply
    139,927.24x = 193,104.80 × 79,508.13
  4. Step 4: Simplify right side
    139,927.24x = 15,353,401,542.02
  5. Step 5: Solve for x
    x = 15,353,401,542.02/139,927.24
  6. Step 6: Final answer
    x = 109,724.18

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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.