Home / 161,539.85-222,921.11-89,918.37

Finding the Fourth Proportional to 161,539.85, 222,921.11 and 89,918.37

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Solution

The fourth proportional to 161,539.85, 222,921.11 and 89,918.37 is: 124,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,539.85 : 222,921.11 = 89,918.37 : x
  2. Step 2: Convert to fraction form
    161,539.85/222,921.11 = 89,918.37/x
  3. Step 3: Cross multiply
    161,539.85x = 222,921.11 × 89,918.37
  4. Step 4: Simplify right side
    161,539.85x = 20,044,703,074.59
  5. Step 5: Solve for x
    x = 20,044,703,074.59/161,539.85
  6. Step 6: Final answer
    x = 124,085.19

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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.