Home / 102,519.53-153,831.17-69,169.51

Finding the Fourth Proportional to 102,519.53, 153,831.17 and 69,169.51

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Solution

The fourth proportional to 102,519.53, 153,831.17 and 69,169.51 is: 103,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,519.53 : 153,831.17 = 69,169.51 : x
  2. Step 2: Convert to fraction form
    102,519.53/153,831.17 = 69,169.51/x
  3. Step 3: Cross multiply
    102,519.53x = 153,831.17 × 69,169.51
  4. Step 4: Simplify right side
    102,519.53x = 10,640,425,921.20
  5. Step 5: Solve for x
    x = 10,640,425,921.20/102,519.53
  6. Step 6: Final answer
    x = 103,789.26

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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.