Home / 161,586.72-222,495.12-161,120.16

Finding the Fourth Proportional to 161,586.72, 222,495.12 and 161,120.16

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Solution

The fourth proportional to 161,586.72, 222,495.12 and 161,120.16 is: 221,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,586.72 : 222,495.12 = 161,120.16 : x
  2. Step 2: Convert to fraction form
    161,586.72/222,495.12 = 161,120.16/x
  3. Step 3: Cross multiply
    161,586.72x = 222,495.12 × 161,120.16
  4. Step 4: Simplify right side
    161,586.72x = 35,848,449,333.62
  5. Step 5: Solve for x
    x = 35,848,449,333.62/161,586.72
  6. Step 6: Final answer
    x = 221,852.70

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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.