Home / 219,848.70-329,882.40-86,733.30

Finding the Fourth Proportional to 219,848.70, 329,882.40 and 86,733.30

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Solution

The fourth proportional to 219,848.70, 329,882.40 and 86,733.30 is: 130,143.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,848.70 : 329,882.40 = 86,733.30 : x
  2. Step 2: Convert to fraction form
    219,848.70/329,882.40 = 86,733.30/x
  3. Step 3: Cross multiply
    219,848.70x = 329,882.40 × 86,733.30
  4. Step 4: Simplify right side
    219,848.70x = 28,611,789,163.92
  5. Step 5: Solve for x
    x = 28,611,789,163.92/219,848.70
  6. Step 6: Final answer
    x = 130,143.09

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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.