Home / 168,273.40-252,403.09-68,429.75

Finding the Fourth Proportional to 168,273.40, 252,403.09 and 68,429.75

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Solution

The fourth proportional to 168,273.40, 252,403.09 and 68,429.75 is: 102,641.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,273.40 : 252,403.09 = 68,429.75 : x
  2. Step 2: Convert to fraction form
    168,273.40/252,403.09 = 68,429.75/x
  3. Step 3: Cross multiply
    168,273.40x = 252,403.09 × 68,429.75
  4. Step 4: Simplify right side
    168,273.40x = 17,271,880,347.93
  5. Step 5: Solve for x
    x = 17,271,880,347.93/168,273.40
  6. Step 6: Final answer
    x = 102,641.77

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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.