Home / 161,872.41-223,385.13-90,257.07

Finding the Fourth Proportional to 161,872.41, 223,385.13 and 90,257.07

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Solution

The fourth proportional to 161,872.41, 223,385.13 and 90,257.07 is: 124,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,872.41 : 223,385.13 = 90,257.07 : x
  2. Step 2: Convert to fraction form
    161,872.41/223,385.13 = 90,257.07/x
  3. Step 3: Cross multiply
    161,872.41x = 223,385.13 × 90,257.07
  4. Step 4: Simplify right side
    161,872.41x = 20,162,087,315.37
  5. Step 5: Solve for x
    x = 20,162,087,315.37/161,872.41
  6. Step 6: Final answer
    x = 124,555.43

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1.5x scale

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.