Home / 99,904.98-137,899.89-61,676.58

Finding the Fourth Proportional to 99,904.98, 137,899.89 and 61,676.58

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Solution

The fourth proportional to 99,904.98, 137,899.89 and 61,676.58 is: 85,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,904.98 : 137,899.89 = 61,676.58 : x
  2. Step 2: Convert to fraction form
    99,904.98/137,899.89 = 61,676.58/x
  3. Step 3: Cross multiply
    99,904.98x = 137,899.89 × 61,676.58
  4. Step 4: Simplify right side
    99,904.98x = 8,505,193,597.58
  5. Step 5: Solve for x
    x = 8,505,193,597.58/99,904.98
  6. Step 6: Final answer
    x = 85,132.83

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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.