Home / 161,826.98-223,330.84-90,206.78

Finding the Fourth Proportional to 161,826.98, 223,330.84 and 90,206.78

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Solution

The fourth proportional to 161,826.98, 223,330.84 and 90,206.78 is: 124,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,826.98 : 223,330.84 = 90,206.78 : x
  2. Step 2: Convert to fraction form
    161,826.98/223,330.84 = 90,206.78/x
  3. Step 3: Cross multiply
    161,826.98x = 223,330.84 × 90,206.78
  4. Step 4: Simplify right side
    161,826.98x = 20,145,954,608.92
  5. Step 5: Solve for x
    x = 20,145,954,608.92/161,826.98
  6. Step 6: Final answer
    x = 124,490.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.