Home / 161,020.85-222,218.91-89,402.13

Finding the Fourth Proportional to 161,020.85, 222,218.91 and 89,402.13

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Solution

The fourth proportional to 161,020.85, 222,218.91 and 89,402.13 is: 123,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,020.85 : 222,218.91 = 89,402.13 : x
  2. Step 2: Convert to fraction form
    161,020.85/222,218.91 = 89,402.13/x
  3. Step 3: Cross multiply
    161,020.85x = 222,218.91 × 89,402.13
  4. Step 4: Simplify right side
    161,020.85x = 19,866,843,880.28
  5. Step 5: Solve for x
    x = 19,866,843,880.28/161,020.85
  6. Step 6: Final answer
    x = 123,380.57

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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.