Home / 99,787.41-137,658.87-67,533.30

Finding the Fourth Proportional to 99,787.41, 137,658.87 and 67,533.30

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Solution

The fourth proportional to 99,787.41, 137,658.87 and 67,533.30 is: 93,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,787.41 : 137,658.87 = 67,533.30 : x
  2. Step 2: Convert to fraction form
    99,787.41/137,658.87 = 67,533.30/x
  3. Step 3: Cross multiply
    99,787.41x = 137,658.87 × 67,533.30
  4. Step 4: Simplify right side
    99,787.41x = 9,296,557,765.37
  5. Step 5: Solve for x
    x = 9,296,557,765.37/99,787.41
  6. Step 6: Final answer
    x = 93,163.63

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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.