Home / 158,815.97-219,103.53-90,796.40

Finding the Fourth Proportional to 158,815.97, 219,103.53 and 90,796.40

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Solution

The fourth proportional to 158,815.97, 219,103.53 and 90,796.40 is: 125,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,815.97 : 219,103.53 = 90,796.40 : x
  2. Step 2: Convert to fraction form
    158,815.97/219,103.53 = 90,796.40/x
  3. Step 3: Cross multiply
    158,815.97x = 219,103.53 × 90,796.40
  4. Step 4: Simplify right side
    158,815.97x = 19,893,811,297.31
  5. Step 5: Solve for x
    x = 19,893,811,297.31/158,815.97
  6. Step 6: Final answer
    x = 125,263.29

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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.