Home / 99,375.26-137,125.37-67,179.91

Finding the Fourth Proportional to 99,375.26, 137,125.37 and 67,179.91

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Solution

The fourth proportional to 99,375.26, 137,125.37 and 67,179.91 is: 92,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,375.26 : 137,125.37 = 67,179.91 : x
  2. Step 2: Convert to fraction form
    99,375.26/137,125.37 = 67,179.91/x
  3. Step 3: Cross multiply
    99,375.26x = 137,125.37 × 67,179.91
  4. Step 4: Simplify right side
    99,375.26x = 9,212,069,840.45
  5. Step 5: Solve for x
    x = 9,212,069,840.45/99,375.26
  6. Step 6: Final answer
    x = 92,699.84

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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.