Home / 219,033.18-328,552.38-85,976.10

Finding the Fourth Proportional to 219,033.18, 328,552.38 and 85,976.10

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Solution

The fourth proportional to 219,033.18, 328,552.38 and 85,976.10 is: 128,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,033.18 : 328,552.38 = 85,976.10 : x
  2. Step 2: Convert to fraction form
    219,033.18/328,552.38 = 85,976.10/x
  3. Step 3: Cross multiply
    219,033.18x = 328,552.38 × 85,976.10
  4. Step 4: Simplify right side
    219,033.18x = 28,247,652,278.12
  5. Step 5: Solve for x
    x = 28,247,652,278.12/219,033.18
  6. Step 6: Final answer
    x = 128,965.17

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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.