Home / 114,721.36-172,089.64-30,480.35

Finding the Fourth Proportional to 114,721.36, 172,089.64 and 30,480.35

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Solution

The fourth proportional to 114,721.36, 172,089.64 and 30,480.35 is: 45,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,721.36 : 172,089.64 = 30,480.35 : x
  2. Step 2: Convert to fraction form
    114,721.36/172,089.64 = 30,480.35/x
  3. Step 3: Cross multiply
    114,721.36x = 172,089.64 × 30,480.35
  4. Step 4: Simplify right side
    114,721.36x = 5,245,352,458.57
  5. Step 5: Solve for x
    x = 5,245,352,458.57/114,721.36
  6. Step 6: Final answer
    x = 45,722.54

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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.