Home / 161,488.64-222,854.06-100,212.03

Finding the Fourth Proportional to 161,488.64, 222,854.06 and 100,212.03

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Solution

The fourth proportional to 161,488.64, 222,854.06 and 100,212.03 is: 138,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,488.64 : 222,854.06 = 100,212.03 : x
  2. Step 2: Convert to fraction form
    161,488.64/222,854.06 = 100,212.03/x
  3. Step 3: Cross multiply
    161,488.64x = 222,854.06 × 100,212.03
  4. Step 4: Simplify right side
    161,488.64x = 22,332,657,245.28
  5. Step 5: Solve for x
    x = 22,332,657,245.28/161,488.64
  6. Step 6: Final answer
    x = 138,292.44

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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.