Home / 168,828.80-253,243.20-68,923.40

Finding the Fourth Proportional to 168,828.80, 253,243.20 and 68,923.40

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Solution

The fourth proportional to 168,828.80, 253,243.20 and 68,923.40 is: 103,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,828.80 : 253,243.20 = 68,923.40 : x
  2. Step 2: Convert to fraction form
    168,828.80/253,243.20 = 68,923.40/x
  3. Step 3: Cross multiply
    168,828.80x = 253,243.20 × 68,923.40
  4. Step 4: Simplify right side
    168,828.80x = 17,454,382,370.88
  5. Step 5: Solve for x
    x = 17,454,382,370.88/168,828.80
  6. Step 6: Final answer
    x = 103,385.10

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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.