Home / 172,119.21-237,456.42-99,508.71

Finding the Fourth Proportional to 172,119.21, 237,456.42 and 99,508.71

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Solution

The fourth proportional to 172,119.21, 237,456.42 and 99,508.71 is: 137,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,119.21 : 237,456.42 = 99,508.71 : x
  2. Step 2: Convert to fraction form
    172,119.21/237,456.42 = 99,508.71/x
  3. Step 3: Cross multiply
    172,119.21x = 237,456.42 × 99,508.71
  4. Step 4: Simplify right side
    172,119.21x = 23,628,982,035.42
  5. Step 5: Solve for x
    x = 23,628,982,035.42/172,119.21
  6. Step 6: Final answer
    x = 137,282.65

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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.