Home / 161,140.15-222,408.98-89,544.79

Finding the Fourth Proportional to 161,140.15, 222,408.98 and 89,544.79

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Solution

The fourth proportional to 161,140.15, 222,408.98 and 89,544.79 is: 123,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,140.15 : 222,408.98 = 89,544.79 : x
  2. Step 2: Convert to fraction form
    161,140.15/222,408.98 = 89,544.79/x
  3. Step 3: Cross multiply
    161,140.15x = 222,408.98 × 89,544.79
  4. Step 4: Simplify right side
    161,140.15x = 19,915,564,960.49
  5. Step 5: Solve for x
    x = 19,915,564,960.49/161,140.15
  6. Step 6: Final answer
    x = 123,591.58

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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.