Home / 219,500.32-329,024.49-86,326.60

Finding the Fourth Proportional to 219,500.32, 329,024.49 and 86,326.60

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Solution

The fourth proportional to 219,500.32, 329,024.49 and 86,326.60 is: 129,401.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,500.32 : 329,024.49 = 86,326.60 : x
  2. Step 2: Convert to fraction form
    219,500.32/329,024.49 = 86,326.60/x
  3. Step 3: Cross multiply
    219,500.32x = 329,024.49 × 86,326.60
  4. Step 4: Simplify right side
    219,500.32x = 28,403,565,538.43
  5. Step 5: Solve for x
    x = 28,403,565,538.43/219,500.32
  6. Step 6: Final answer
    x = 129,401.02

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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.