Home / 161,289.22-222,568.74-89,667.40

Finding the Fourth Proportional to 161,289.22, 222,568.74 and 89,667.40

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Solution

The fourth proportional to 161,289.22, 222,568.74 and 89,667.40 is: 123,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,289.22 : 222,568.74 = 89,667.40 : x
  2. Step 2: Convert to fraction form
    161,289.22/222,568.74 = 89,667.40/x
  3. Step 3: Cross multiply
    161,289.22x = 222,568.74 × 89,667.40
  4. Step 4: Simplify right side
    161,289.22x = 19,957,160,237.08
  5. Step 5: Solve for x
    x = 19,957,160,237.08/161,289.22
  6. Step 6: Final answer
    x = 123,735.24

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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.