Home / 206,781.24-310,154.58-82,088.76

Finding the Fourth Proportional to 206,781.24, 310,154.58 and 82,088.76

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Solution

The fourth proportional to 206,781.24, 310,154.58 and 82,088.76 is: 123,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,781.24 : 310,154.58 = 82,088.76 : x
  2. Step 2: Convert to fraction form
    206,781.24/310,154.58 = 82,088.76/x
  3. Step 3: Cross multiply
    206,781.24x = 310,154.58 × 82,088.76
  4. Step 4: Simplify right side
    206,781.24x = 25,460,204,880.52
  5. Step 5: Solve for x
    x = 25,460,204,880.52/206,781.24
  6. Step 6: Final answer
    x = 123,126.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.