Home / 161,912.70-223,428.98-89,311.22

Finding the Fourth Proportional to 161,912.70, 223,428.98 and 89,311.22

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Solution

The fourth proportional to 161,912.70, 223,428.98 and 89,311.22 is: 123,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,912.70 : 223,428.98 = 89,311.22 : x
  2. Step 2: Convert to fraction form
    161,912.70/223,428.98 = 89,311.22/x
  3. Step 3: Cross multiply
    161,912.70x = 223,428.98 × 89,311.22
  4. Step 4: Simplify right side
    161,912.70x = 19,954,713,223.45
  5. Step 5: Solve for x
    x = 19,954,713,223.45/161,912.70
  6. Step 6: Final answer
    x = 123,243.66

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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.