Home / 161,381.36-222,651.60-115,402.16

Finding the Fourth Proportional to 161,381.36, 222,651.60 and 115,402.16

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Solution

The fourth proportional to 161,381.36, 222,651.60 and 115,402.16 is: 159,215.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,381.36 : 222,651.60 = 115,402.16 : x
  2. Step 2: Convert to fraction form
    161,381.36/222,651.60 = 115,402.16/x
  3. Step 3: Cross multiply
    161,381.36x = 222,651.60 × 115,402.16
  4. Step 4: Simplify right side
    161,381.36x = 25,694,475,567.46
  5. Step 5: Solve for x
    x = 25,694,475,567.46/161,381.36
  6. Step 6: Final answer
    x = 159,215.88

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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.