Home / 219,863.20-329,904.15-86,747.80

Finding the Fourth Proportional to 219,863.20, 329,904.15 and 86,747.80

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Solution

The fourth proportional to 219,863.20, 329,904.15 and 86,747.80 is: 130,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,863.20 : 329,904.15 = 86,747.80 : x
  2. Step 2: Convert to fraction form
    219,863.20/329,904.15 = 86,747.80/x
  3. Step 3: Cross multiply
    219,863.20x = 329,904.15 × 86,747.80
  4. Step 4: Simplify right side
    219,863.20x = 28,618,459,223.37
  5. Step 5: Solve for x
    x = 28,618,459,223.37/219,863.20
  6. Step 6: Final answer
    x = 130,164.84

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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.