Home / 161,293.70-222,572.66-89,669.36

Finding the Fourth Proportional to 161,293.70, 222,572.66 and 89,669.36

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Solution

The fourth proportional to 161,293.70, 222,572.66 and 89,669.36 is: 123,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,293.70 : 222,572.66 = 89,669.36 : x
  2. Step 2: Convert to fraction form
    161,293.70/222,572.66 = 89,669.36/x
  3. Step 3: Cross multiply
    161,293.70x = 222,572.66 × 89,669.36
  4. Step 4: Simplify right side
    161,293.70x = 19,957,947,975.70
  5. Step 5: Solve for x
    x = 19,957,947,975.70/161,293.70
  6. Step 6: Final answer
    x = 123,736.69

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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.