Home / 161,280.90-222,581.10-89,667.60

Finding the Fourth Proportional to 161,280.90, 222,581.10 and 89,667.60

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Solution

The fourth proportional to 161,280.90, 222,581.10 and 89,667.60 is: 123,748.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,280.90 : 222,581.10 = 89,667.60 : x
  2. Step 2: Convert to fraction form
    161,280.90/222,581.10 = 89,667.60/x
  3. Step 3: Cross multiply
    161,280.90x = 222,581.10 × 89,667.60
  4. Step 4: Simplify right side
    161,280.90x = 19,958,313,042.36
  5. Step 5: Solve for x
    x = 19,958,313,042.36/161,280.90
  6. Step 6: Final answer
    x = 123,748.77

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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.