Home / 161,530.08-222,907.80-89,905.68

Finding the Fourth Proportional to 161,530.08, 222,907.80 and 89,905.68

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Solution

The fourth proportional to 161,530.08, 222,907.80 and 89,905.68 is: 124,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,530.08 : 222,907.80 = 89,905.68 : x
  2. Step 2: Convert to fraction form
    161,530.08/222,907.80 = 89,905.68/x
  3. Step 3: Cross multiply
    161,530.08x = 222,907.80 × 89,905.68
  4. Step 4: Simplify right side
    161,530.08x = 20,040,677,336.30
  5. Step 5: Solve for x
    x = 20,040,677,336.30/161,530.08
  6. Step 6: Final answer
    x = 124,067.77

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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.