Home / 218,669.10-301,769.19-123,170.10

Finding the Fourth Proportional to 218,669.10, 301,769.19 and 123,170.10

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Solution

The fourth proportional to 218,669.10, 301,769.19 and 123,170.10 is: 169,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,669.10 : 301,769.19 = 123,170.10 : x
  2. Step 2: Convert to fraction form
    218,669.10/301,769.19 = 123,170.10/x
  3. Step 3: Cross multiply
    218,669.10x = 301,769.19 × 123,170.10
  4. Step 4: Simplify right side
    218,669.10x = 37,168,941,309.22
  5. Step 5: Solve for x
    x = 37,168,941,309.22/218,669.10
  6. Step 6: Final answer
    x = 169,978.02

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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.