Home / 158,905.60-219,296.62-90,943.90

Finding the Fourth Proportional to 158,905.60, 219,296.62 and 90,943.90

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Solution

The fourth proportional to 158,905.60, 219,296.62 and 90,943.90 is: 125,506.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,905.60 : 219,296.62 = 90,943.90 : x
  2. Step 2: Convert to fraction form
    158,905.60/219,296.62 = 90,943.90/x
  3. Step 3: Cross multiply
    158,905.60x = 219,296.62 × 90,943.90
  4. Step 4: Simplify right side
    158,905.60x = 19,943,689,879.62
  5. Step 5: Solve for x
    x = 19,943,689,879.62/158,905.60
  6. Step 6: Final answer
    x = 125,506.53

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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.