Home / 139,272.39-192,198.15-75,610.17

Finding the Fourth Proportional to 139,272.39, 192,198.15 and 75,610.17

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Solution

The fourth proportional to 139,272.39, 192,198.15 and 75,610.17 is: 104,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,272.39 : 192,198.15 = 75,610.17 : x
  2. Step 2: Convert to fraction form
    139,272.39/192,198.15 = 75,610.17/x
  3. Step 3: Cross multiply
    139,272.39x = 192,198.15 × 75,610.17
  4. Step 4: Simplify right side
    139,272.39x = 14,532,134,795.19
  5. Step 5: Solve for x
    x = 14,532,134,795.19/139,272.39
  6. Step 6: Final answer
    x = 104,343.26

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1.5x scale

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.