Home / 156,296.87-215,610.40-98,839.36

Finding the Fourth Proportional to 156,296.87, 215,610.40 and 98,839.36

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Solution

The fourth proportional to 156,296.87, 215,610.40 and 98,839.36 is: 136,348.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,296.87 : 215,610.40 = 98,839.36 : x
  2. Step 2: Convert to fraction form
    156,296.87/215,610.40 = 98,839.36/x
  3. Step 3: Cross multiply
    156,296.87x = 215,610.40 × 98,839.36
  4. Step 4: Simplify right side
    156,296.87x = 21,310,794,338.41
  5. Step 5: Solve for x
    x = 21,310,794,338.41/156,296.87
  6. Step 6: Final answer
    x = 136,348.18

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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.