Home / 139,944.24-193,128.30-79,525.17

Finding the Fourth Proportional to 139,944.24, 193,128.30 and 79,525.17

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Solution

The fourth proportional to 139,944.24, 193,128.30 and 79,525.17 is: 109,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,944.24 : 193,128.30 = 79,525.17 : x
  2. Step 2: Convert to fraction form
    139,944.24/193,128.30 = 79,525.17/x
  3. Step 3: Cross multiply
    139,944.24x = 193,128.30 × 79,525.17
  4. Step 4: Simplify right side
    139,944.24x = 15,358,560,889.31
  5. Step 5: Solve for x
    x = 15,358,560,889.31/139,944.24
  6. Step 6: Final answer
    x = 109,747.72

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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.