Home / 99,626.36-137,406.60-63,819.70

Finding the Fourth Proportional to 99,626.36, 137,406.60 and 63,819.70

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Solution

The fourth proportional to 99,626.36, 137,406.60 and 63,819.70 is: 88,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,626.36 : 137,406.60 = 63,819.70 : x
  2. Step 2: Convert to fraction form
    99,626.36/137,406.60 = 63,819.70/x
  3. Step 3: Cross multiply
    99,626.36x = 137,406.60 × 63,819.70
  4. Step 4: Simplify right side
    99,626.36x = 8,769,247,990.02
  5. Step 5: Solve for x
    x = 8,769,247,990.02/99,626.36
  6. Step 6: Final answer
    x = 88,021.36

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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.