Home / 99,420.72-149,083.92-36,196.08

Finding the Fourth Proportional to 99,420.72, 149,083.92 and 36,196.08

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Solution

The fourth proportional to 99,420.72, 149,083.92 and 36,196.08 is: 54,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,420.72 : 149,083.92 = 36,196.08 : x
  2. Step 2: Convert to fraction form
    99,420.72/149,083.92 = 36,196.08/x
  3. Step 3: Cross multiply
    99,420.72x = 149,083.92 × 36,196.08
  4. Step 4: Simplify right side
    99,420.72x = 5,396,253,495.03
  5. Step 5: Solve for x
    x = 5,396,253,495.03/99,420.72
  6. Step 6: Final answer
    x = 54,276.95

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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.