Home / 103,355.92-154,923-53,422.48

Finding the Fourth Proportional to 103,355.92, 154,923 and 53,422.48

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Solution

The fourth proportional to 103,355.92, 154,923 and 53,422.48 is: 80,076.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,355.92 : 154,923 = 53,422.48 : x
  2. Step 2: Convert to fraction form
    103,355.92/154,923 = 53,422.48/x
  3. Step 3: Cross multiply
    103,355.92x = 154,923 × 53,422.48
  4. Step 4: Simplify right side
    103,355.92x = 8,276,370,869.04
  5. Step 5: Solve for x
    x = 8,276,370,869.04/103,355.92
  6. Step 6: Final answer
    x = 80,076.41

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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.