Home / 219,825.02-329,515.92-86,653.70

Finding the Fourth Proportional to 219,825.02, 329,515.92 and 86,653.70

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Solution

The fourth proportional to 219,825.02, 329,515.92 and 86,653.70 is: 129,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,825.02 : 329,515.92 = 86,653.70 : x
  2. Step 2: Convert to fraction form
    219,825.02/329,515.92 = 86,653.70/x
  3. Step 3: Cross multiply
    219,825.02x = 329,515.92 × 86,653.70
  4. Step 4: Simplify right side
    219,825.02x = 28,553,773,676.90
  5. Step 5: Solve for x
    x = 28,553,773,676.90/219,825.02
  6. Step 6: Final answer
    x = 129,893.19

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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.