Home / 161,122.82-222,349.38-89,509.50

Finding the Fourth Proportional to 161,122.82, 222,349.38 and 89,509.50

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Solution

The fourth proportional to 161,122.82, 222,349.38 and 89,509.50 is: 123,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,122.82 : 222,349.38 = 89,509.50 : x
  2. Step 2: Convert to fraction form
    161,122.82/222,349.38 = 89,509.50/x
  3. Step 3: Cross multiply
    161,122.82x = 222,349.38 × 89,509.50
  4. Step 4: Simplify right side
    161,122.82x = 19,902,381,829.11
  5. Step 5: Solve for x
    x = 19,902,381,829.11/161,122.82
  6. Step 6: Final answer
    x = 123,523.05

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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.