Home / 161,276.16-222,536.64-89,656.80

Finding the Fourth Proportional to 161,276.16, 222,536.64 and 89,656.80

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Solution

The fourth proportional to 161,276.16, 222,536.64 and 89,656.80 is: 123,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,276.16 : 222,536.64 = 89,656.80 : x
  2. Step 2: Convert to fraction form
    161,276.16/222,536.64 = 89,656.80/x
  3. Step 3: Cross multiply
    161,276.16x = 222,536.64 × 89,656.80
  4. Step 4: Simplify right side
    161,276.16x = 19,951,923,025.15
  5. Step 5: Solve for x
    x = 19,951,923,025.15/161,276.16
  6. Step 6: Final answer
    x = 123,712.79

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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.