Home / 161,007.67-222,166.83-89,388.28

Finding the Fourth Proportional to 161,007.67, 222,166.83 and 89,388.28

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Solution

The fourth proportional to 161,007.67, 222,166.83 and 89,388.28 is: 123,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,007.67 : 222,166.83 = 89,388.28 : x
  2. Step 2: Convert to fraction form
    161,007.67/222,166.83 = 89,388.28/x
  3. Step 3: Cross multiply
    161,007.67x = 222,166.83 × 89,388.28
  4. Step 4: Simplify right side
    161,007.67x = 19,859,110,806.75
  5. Step 5: Solve for x
    x = 19,859,110,806.75/161,007.67
  6. Step 6: Final answer
    x = 123,342.64

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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.