Home / 168,291.89-252,451.73-121,126.50

Finding the Fourth Proportional to 168,291.89, 252,451.73 and 121,126.50

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Solution

The fourth proportional to 168,291.89, 252,451.73 and 121,126.50 is: 181,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291.89 : 252,451.73 = 121,126.50 : x
  2. Step 2: Convert to fraction form
    168,291.89/252,451.73 = 121,126.50/x
  3. Step 3: Cross multiply
    168,291.89x = 252,451.73 × 121,126.50
  4. Step 4: Simplify right side
    168,291.89x = 30,578,594,473.85
  5. Step 5: Solve for x
    x = 30,578,594,473.85/168,291.89
  6. Step 6: Final answer
    x = 181,699.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.