Home / 219,639.60-329,823.78-137,058.48

Finding the Fourth Proportional to 219,639.60, 329,823.78 and 137,058.48

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Solution

The fourth proportional to 219,639.60, 329,823.78 and 137,058.48 is: 205,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,639.60 : 329,823.78 = 137,058.48 : x
  2. Step 2: Convert to fraction form
    219,639.60/329,823.78 = 137,058.48/x
  3. Step 3: Cross multiply
    219,639.60x = 329,823.78 × 137,058.48
  4. Step 4: Simplify right side
    219,639.60x = 45,205,145,954.65
  5. Step 5: Solve for x
    x = 45,205,145,954.65/219,639.60
  6. Step 6: Final answer
    x = 205,815.10

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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.