Home / 99,689.38-149,559.26-33,129.82

Finding the Fourth Proportional to 99,689.38, 149,559.26 and 33,129.82

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Solution

The fourth proportional to 99,689.38, 149,559.26 and 33,129.82 is: 49,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,689.38 : 149,559.26 = 33,129.82 : x
  2. Step 2: Convert to fraction form
    99,689.38/149,559.26 = 33,129.82/x
  3. Step 3: Cross multiply
    99,689.38x = 149,559.26 × 33,129.82
  4. Step 4: Simplify right side
    99,689.38x = 4,954,871,363.13
  5. Step 5: Solve for x
    x = 4,954,871,363.13/99,689.38
  6. Step 6: Final answer
    x = 49,703.10

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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.