Home / 161,509.80-222,881.31-89,889.84

Finding the Fourth Proportional to 161,509.80, 222,881.31 and 89,889.84

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Solution

The fourth proportional to 161,509.80, 222,881.31 and 89,889.84 is: 124,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,509.80 : 222,881.31 = 89,889.84 : x
  2. Step 2: Convert to fraction form
    161,509.80/222,881.31 = 89,889.84/x
  3. Step 3: Cross multiply
    161,509.80x = 222,881.31 × 89,889.84
  4. Step 4: Simplify right side
    161,509.80x = 20,034,765,294.89
  5. Step 5: Solve for x
    x = 20,034,765,294.89/161,509.80
  6. Step 6: Final answer
    x = 124,046.75

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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.