Home / 219,864.20-329,905.65-86,748.80

Finding the Fourth Proportional to 219,864.20, 329,905.65 and 86,748.80

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Solution

The fourth proportional to 219,864.20, 329,905.65 and 86,748.80 is: 130,166.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,864.20 : 329,905.65 = 86,748.80 : x
  2. Step 2: Convert to fraction form
    219,864.20/329,905.65 = 86,748.80/x
  3. Step 3: Cross multiply
    219,864.20x = 329,905.65 × 86,748.80
  4. Step 4: Simplify right side
    219,864.20x = 28,618,919,250.72
  5. Step 5: Solve for x
    x = 28,618,919,250.72/219,864.20
  6. Step 6: Final answer
    x = 130,166.34

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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.