Home / 219,850.20-329,532.30-86,686.20

Finding the Fourth Proportional to 219,850.20, 329,532.30 and 86,686.20

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Solution

The fourth proportional to 219,850.20, 329,532.30 and 86,686.20 is: 129,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,850.20 : 329,532.30 = 86,686.20 : x
  2. Step 2: Convert to fraction form
    219,850.20/329,532.30 = 86,686.20/x
  3. Step 3: Cross multiply
    219,850.20x = 329,532.30 × 86,686.20
  4. Step 4: Simplify right side
    219,850.20x = 28,565,902,864.26
  5. Step 5: Solve for x
    x = 28,565,902,864.26/219,850.20
  6. Step 6: Final answer
    x = 129,933.49

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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.