Home / 158,904.60-219,295.24-90,942.90

Finding the Fourth Proportional to 158,904.60, 219,295.24 and 90,942.90

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Solution

The fourth proportional to 158,904.60, 219,295.24 and 90,942.90 is: 125,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,904.60 : 219,295.24 = 90,942.90 : x
  2. Step 2: Convert to fraction form
    158,904.60/219,295.24 = 90,942.90/x
  3. Step 3: Cross multiply
    158,904.60x = 219,295.24 × 90,942.90
  4. Step 4: Simplify right side
    158,904.60x = 19,943,345,081.80
  5. Step 5: Solve for x
    x = 19,943,345,081.80/158,904.60
  6. Step 6: Final answer
    x = 125,505.15

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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.