Home / 161,358.18-222,657.24-89,726.64

Finding the Fourth Proportional to 161,358.18, 222,657.24 and 89,726.64

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Solution

The fourth proportional to 161,358.18, 222,657.24 and 89,726.64 is: 123,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,358.18 : 222,657.24 = 89,726.64 : x
  2. Step 2: Convert to fraction form
    161,358.18/222,657.24 = 89,726.64/x
  3. Step 3: Cross multiply
    161,358.18x = 222,657.24 × 89,726.64
  4. Step 4: Simplify right side
    161,358.18x = 19,978,286,016.87
  5. Step 5: Solve for x
    x = 19,978,286,016.87/161,358.18
  6. Step 6: Final answer
    x = 123,813.28

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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.