Home / 139,674.04-192,754.55-79,247.23

Finding the Fourth Proportional to 139,674.04, 192,754.55 and 79,247.23

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Solution

The fourth proportional to 139,674.04, 192,754.55 and 79,247.23 is: 109,363.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,674.04 : 192,754.55 = 79,247.23 : x
  2. Step 2: Convert to fraction form
    139,674.04/192,754.55 = 79,247.23/x
  3. Step 3: Cross multiply
    139,674.04x = 192,754.55 × 79,247.23
  4. Step 4: Simplify right side
    139,674.04x = 15,275,264,157.40
  5. Step 5: Solve for x
    x = 15,275,264,157.40/139,674.04
  6. Step 6: Final answer
    x = 109,363.66

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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.