Home / 140,009.99-193,206.78-79,572.65

Finding the Fourth Proportional to 140,009.99, 193,206.78 and 79,572.65

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Solution

The fourth proportional to 140,009.99, 193,206.78 and 79,572.65 is: 109,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,009.99 : 193,206.78 = 79,572.65 : x
  2. Step 2: Convert to fraction form
    140,009.99/193,206.78 = 79,572.65/x
  3. Step 3: Cross multiply
    140,009.99x = 193,206.78 × 79,572.65
  4. Step 4: Simplify right side
    140,009.99x = 15,373,974,516.53
  5. Step 5: Solve for x
    x = 15,373,974,516.53/140,009.99
  6. Step 6: Final answer
    x = 109,806.27

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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.