Home / 199,693.20-275,637.64-123,235.68

Finding the Fourth Proportional to 199,693.20, 275,637.64 and 123,235.68

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Solution

The fourth proportional to 199,693.20, 275,637.64 and 123,235.68 is: 170,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,693.20 : 275,637.64 = 123,235.68 : x
  2. Step 2: Convert to fraction form
    199,693.20/275,637.64 = 123,235.68/x
  3. Step 3: Cross multiply
    199,693.20x = 275,637.64 × 123,235.68
  4. Step 4: Simplify right side
    199,693.20x = 33,968,391,999.00
  5. Step 5: Solve for x
    x = 33,968,391,999.00/199,693.20
  6. Step 6: Final answer
    x = 170,102.90

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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.