Home / 99,748.78-137,653.26-63,938.77

Finding the Fourth Proportional to 99,748.78, 137,653.26 and 63,938.77

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Solution

The fourth proportional to 99,748.78, 137,653.26 and 63,938.77 is: 88,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,748.78 : 137,653.26 = 63,938.77 : x
  2. Step 2: Convert to fraction form
    99,748.78/137,653.26 = 63,938.77/x
  3. Step 3: Cross multiply
    99,748.78x = 137,653.26 × 63,938.77
  4. Step 4: Simplify right side
    99,748.78x = 8,801,379,546.99
  5. Step 5: Solve for x
    x = 8,801,379,546.99/99,748.78
  6. Step 6: Final answer
    x = 88,235.46

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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.