Home / 161,939.20-223,476.42-90,323.86

Finding the Fourth Proportional to 161,939.20, 223,476.42 and 90,323.86

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Solution

The fourth proportional to 161,939.20, 223,476.42 and 90,323.86 is: 124,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,939.20 : 223,476.42 = 90,323.86 : x
  2. Step 2: Convert to fraction form
    161,939.20/223,476.42 = 90,323.86/x
  3. Step 3: Cross multiply
    161,939.20x = 223,476.42 × 90,323.86
  4. Step 4: Simplify right side
    161,939.20x = 20,185,252,564.35
  5. Step 5: Solve for x
    x = 20,185,252,564.35/161,939.20
  6. Step 6: Final answer
    x = 124,647.11

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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.