Home / 161,280.79-222,568.37-89,667.48

Finding the Fourth Proportional to 161,280.79, 222,568.37 and 89,667.48

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Solution

The fourth proportional to 161,280.79, 222,568.37 and 89,667.48 is: 123,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,280.79 : 222,568.37 = 89,667.48 : x
  2. Step 2: Convert to fraction form
    161,280.79/222,568.37 = 89,667.48/x
  3. Step 3: Cross multiply
    161,280.79x = 222,568.37 × 89,667.48
  4. Step 4: Simplify right side
    161,280.79x = 19,957,144,865.61
  5. Step 5: Solve for x
    x = 19,957,144,865.61/161,280.79
  6. Step 6: Final answer
    x = 123,741.61

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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.