Home / 161,530.11-222,911.49-89,908.56

Finding the Fourth Proportional to 161,530.11, 222,911.49 and 89,908.56

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Solution

The fourth proportional to 161,530.11, 222,911.49 and 89,908.56 is: 124,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,530.11 : 222,911.49 = 89,908.56 : x
  2. Step 2: Convert to fraction form
    161,530.11/222,911.49 = 89,908.56/x
  3. Step 3: Cross multiply
    161,530.11x = 222,911.49 × 89,908.56
  4. Step 4: Simplify right side
    161,530.11x = 20,041,651,073.35
  5. Step 5: Solve for x
    x = 20,041,651,073.35/161,530.11
  6. Step 6: Final answer
    x = 124,073.78

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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.