Home / 161,012.62-222,186.32-89,387.08

Finding the Fourth Proportional to 161,012.62, 222,186.32 and 89,387.08

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Solution

The fourth proportional to 161,012.62, 222,186.32 and 89,387.08 is: 123,348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,012.62 : 222,186.32 = 89,387.08 : x
  2. Step 2: Convert to fraction form
    161,012.62/222,186.32 = 89,387.08/x
  3. Step 3: Cross multiply
    161,012.62x = 222,186.32 × 89,387.08
  4. Step 4: Simplify right side
    161,012.62x = 19,860,586,360.75
  5. Step 5: Solve for x
    x = 19,860,586,360.75/161,012.62
  6. Step 6: Final answer
    x = 123,348.01

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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.