Home / 161,821.80-223,314.17-90,200.18

Finding the Fourth Proportional to 161,821.80, 223,314.17 and 90,200.18

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Solution

The fourth proportional to 161,821.80, 223,314.17 and 90,200.18 is: 124,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,821.80 : 223,314.17 = 90,200.18 : x
  2. Step 2: Convert to fraction form
    161,821.80/223,314.17 = 90,200.18/x
  3. Step 3: Cross multiply
    161,821.80x = 223,314.17 × 90,200.18
  4. Step 4: Simplify right side
    161,821.80x = 20,142,978,437.84
  5. Step 5: Solve for x
    x = 20,142,978,437.84/161,821.80
  6. Step 6: Final answer
    x = 124,476.30

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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.