Home / 140,115.34-193,363.44-79,694.69

Finding the Fourth Proportional to 140,115.34, 193,363.44 and 79,694.69

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Solution

The fourth proportional to 140,115.34, 193,363.44 and 79,694.69 is: 109,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,115.34 : 193,363.44 = 79,694.69 : x
  2. Step 2: Convert to fraction form
    140,115.34/193,363.44 = 79,694.69/x
  3. Step 3: Cross multiply
    140,115.34x = 193,363.44 × 79,694.69
  4. Step 4: Simplify right side
    140,115.34x = 15,410,038,142.46
  5. Step 5: Solve for x
    x = 15,410,038,142.46/140,115.34
  6. Step 6: Final answer
    x = 109,981.09

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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.