Home / 219,780.81-329,712.26-99,846.18

Finding the Fourth Proportional to 219,780.81, 329,712.26 and 99,846.18

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Solution

The fourth proportional to 219,780.81, 329,712.26 and 99,846.18 is: 149,787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,780.81 : 329,712.26 = 99,846.18 : x
  2. Step 2: Convert to fraction form
    219,780.81/329,712.26 = 99,846.18/x
  3. Step 3: Cross multiply
    219,780.81x = 329,712.26 × 99,846.18
  4. Step 4: Simplify right side
    219,780.81x = 32,920,509,160.94
  5. Step 5: Solve for x
    x = 32,920,509,160.94/219,780.81
  6. Step 6: Final answer
    x = 149,787.91

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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.