Home / 221,530.74-332,280.06-86,569.49

Finding the Fourth Proportional to 221,530.74, 332,280.06 and 86,569.49

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Solution

The fourth proportional to 221,530.74, 332,280.06 and 86,569.49 is: 129,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,530.74 : 332,280.06 = 86,569.49 : x
  2. Step 2: Convert to fraction form
    221,530.74/332,280.06 = 86,569.49/x
  3. Step 3: Cross multiply
    221,530.74x = 332,280.06 × 86,569.49
  4. Step 4: Simplify right side
    221,530.74x = 28,765,313,669.97
  5. Step 5: Solve for x
    x = 28,765,313,669.97/221,530.74
  6. Step 6: Final answer
    x = 129,847.96

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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.