Home / 138,564.24-207,763.04-54,223.80

Finding the Fourth Proportional to 138,564.24, 207,763.04 and 54,223.80

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Solution

The fourth proportional to 138,564.24, 207,763.04 and 54,223.80 is: 81,303.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,564.24 : 207,763.04 = 54,223.80 : x
  2. Step 2: Convert to fraction form
    138,564.24/207,763.04 = 54,223.80/x
  3. Step 3: Cross multiply
    138,564.24x = 207,763.04 × 54,223.80
  4. Step 4: Simplify right side
    138,564.24x = 11,265,701,528.35
  5. Step 5: Solve for x
    x = 11,265,701,528.35/138,564.24
  6. Step 6: Final answer
    x = 81,303.09

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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.