Home / 161,013.48-222,189.93-89,388.89

Finding the Fourth Proportional to 161,013.48, 222,189.93 and 89,388.89

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Solution

The fourth proportional to 161,013.48, 222,189.93 and 89,388.89 is: 123,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,013.48 : 222,189.93 = 89,388.89 : x
  2. Step 2: Convert to fraction form
    161,013.48/222,189.93 = 89,388.89/x
  3. Step 3: Cross multiply
    161,013.48x = 222,189.93 × 89,388.89
  4. Step 4: Simplify right side
    161,013.48x = 19,861,309,653.98
  5. Step 5: Solve for x
    x = 19,861,309,653.98/161,013.48
  6. Step 6: Final answer
    x = 123,351.85

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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.