Home / 161,985.45-223,546.01-90,379.32

Finding the Fourth Proportional to 161,985.45, 223,546.01 and 90,379.32

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Solution

The fourth proportional to 161,985.45, 223,546.01 and 90,379.32 is: 124,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.45 : 223,546.01 = 90,379.32 : x
  2. Step 2: Convert to fraction form
    161,985.45/223,546.01 = 90,379.32/x
  3. Step 3: Cross multiply
    161,985.45x = 223,546.01 × 90,379.32
  4. Step 4: Simplify right side
    161,985.45x = 20,203,936,372.51
  5. Step 5: Solve for x
    x = 20,203,936,372.51/161,985.45
  6. Step 6: Final answer
    x = 124,726.86

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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.