Home / 206,686.08-309,972.42-56,891.16

Finding the Fourth Proportional to 206,686.08, 309,972.42 and 56,891.16

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Solution

The fourth proportional to 206,686.08, 309,972.42 and 56,891.16 is: 85,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,686.08 : 309,972.42 = 56,891.16 : x
  2. Step 2: Convert to fraction form
    206,686.08/309,972.42 = 56,891.16/x
  3. Step 3: Cross multiply
    206,686.08x = 309,972.42 × 56,891.16
  4. Step 4: Simplify right side
    206,686.08x = 17,634,690,541.81
  5. Step 5: Solve for x
    x = 17,634,690,541.81/206,686.08
  6. Step 6: Final answer
    x = 85,321.13

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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.