Home / 140,134.09-193,390.85-79,715.38

Finding the Fourth Proportional to 140,134.09, 193,390.85 and 79,715.38

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Solution

The fourth proportional to 140,134.09, 193,390.85 and 79,715.38 is: 110,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,134.09 : 193,390.85 = 79,715.38 : x
  2. Step 2: Convert to fraction form
    140,134.09/193,390.85 = 79,715.38/x
  3. Step 3: Cross multiply
    140,134.09x = 193,390.85 × 79,715.38
  4. Step 4: Simplify right side
    140,134.09x = 15,416,225,096.27
  5. Step 5: Solve for x
    x = 15,416,225,096.27/140,134.09
  6. Step 6: Final answer
    x = 110,010.53

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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.