Home / 219,817.61-329,554.16-86,797.43

Finding the Fourth Proportional to 219,817.61, 329,554.16 and 86,797.43

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Solution

The fourth proportional to 219,817.61, 329,554.16 and 86,797.43 is: 130,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,817.61 : 329,554.16 = 86,797.43 : x
  2. Step 2: Convert to fraction form
    219,817.61/329,554.16 = 86,797.43/x
  3. Step 3: Cross multiply
    219,817.61x = 329,554.16 × 86,797.43
  4. Step 4: Simplify right side
    219,817.61x = 28,604,454,784.36
  5. Step 5: Solve for x
    x = 28,604,454,784.36/219,817.61
  6. Step 6: Final answer
    x = 130,128.13

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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.