Home / 139,677.16-192,758.85-79,250.35

Finding the Fourth Proportional to 139,677.16, 192,758.85 and 79,250.35

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Solution

The fourth proportional to 139,677.16, 192,758.85 and 79,250.35 is: 109,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,677.16 : 192,758.85 = 79,250.35 : x
  2. Step 2: Convert to fraction form
    139,677.16/192,758.85 = 79,250.35/x
  3. Step 3: Cross multiply
    139,677.16x = 192,758.85 × 79,250.35
  4. Step 4: Simplify right side
    139,677.16x = 15,276,206,328.10
  5. Step 5: Solve for x
    x = 15,276,206,328.10/139,677.16
  6. Step 6: Final answer
    x = 109,367.96

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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.