Home / 88,936.80-133,077.15-81,063.60

Finding the Fourth Proportional to 88,936.80, 133,077.15 and 81,063.60

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Solution

The fourth proportional to 88,936.80, 133,077.15 and 81,063.60 is: 121,296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,936.80 : 133,077.15 = 81,063.60 : x
  2. Step 2: Convert to fraction form
    88,936.80/133,077.15 = 81,063.60/x
  3. Step 3: Cross multiply
    88,936.80x = 133,077.15 × 81,063.60
  4. Step 4: Simplify right side
    88,936.80x = 10,787,712,856.74
  5. Step 5: Solve for x
    x = 10,787,712,856.74/88,936.80
  6. Step 6: Final answer
    x = 121,296.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.