Home / 103,108-142,286.62-60,669.28

Finding the Fourth Proportional to 103,108, 142,286.62 and 60,669.28

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Solution

The fourth proportional to 103,108, 142,286.62 and 60,669.28 is: 83,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,108 : 142,286.62 = 60,669.28 : x
  2. Step 2: Convert to fraction form
    103,108/142,286.62 = 60,669.28/x
  3. Step 3: Cross multiply
    103,108x = 142,286.62 × 60,669.28
  4. Step 4: Simplify right side
    103,108x = 8,632,426,789.03
  5. Step 5: Solve for x
    x = 8,632,426,789.03/103,108
  6. Step 6: Final answer
    x = 83,722.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.