Home / 206,269.19-309,492.01-86,354.16

Finding the Fourth Proportional to 206,269.19, 309,492.01 and 86,354.16

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Solution

The fourth proportional to 206,269.19, 309,492.01 and 86,354.16 is: 129,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,269.19 : 309,492.01 = 86,354.16 : x
  2. Step 2: Convert to fraction form
    206,269.19/309,492.01 = 86,354.16/x
  3. Step 3: Cross multiply
    206,269.19x = 309,492.01 × 86,354.16
  4. Step 4: Simplify right side
    206,269.19x = 26,725,922,658.20
  5. Step 5: Solve for x
    x = 26,725,922,658.20/206,269.19
  6. Step 6: Final answer
    x = 129,568.17

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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.