Home / 139,348.34-192,301.26-75,687.20

Finding the Fourth Proportional to 139,348.34, 192,301.26 and 75,687.20

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Solution

The fourth proportional to 139,348.34, 192,301.26 and 75,687.20 is: 104,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,348.34 : 192,301.26 = 75,687.20 : x
  2. Step 2: Convert to fraction form
    139,348.34/192,301.26 = 75,687.20/x
  3. Step 3: Cross multiply
    139,348.34x = 192,301.26 × 75,687.20
  4. Step 4: Simplify right side
    139,348.34x = 14,554,743,925.87
  5. Step 5: Solve for x
    x = 14,554,743,925.87/139,348.34
  6. Step 6: Final answer
    x = 104,448.64

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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.