Home / 219,848.10-329,772.15-86,732.70

Finding the Fourth Proportional to 219,848.10, 329,772.15 and 86,732.70

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Solution

The fourth proportional to 219,848.10, 329,772.15 and 86,732.70 is: 130,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,848.10 : 329,772.15 = 86,732.70 : x
  2. Step 2: Convert to fraction form
    219,848.10/329,772.15 = 86,732.70/x
  3. Step 3: Cross multiply
    219,848.10x = 329,772.15 × 86,732.70
  4. Step 4: Simplify right side
    219,848.10x = 28,602,028,954.31
  5. Step 5: Solve for x
    x = 28,602,028,954.31/219,848.10
  6. Step 6: Final answer
    x = 130,099.05

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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.