Home / 99,707.28-149,528.57-33,129.54

Finding the Fourth Proportional to 99,707.28, 149,528.57 and 33,129.54

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Solution

The fourth proportional to 99,707.28, 149,528.57 and 33,129.54 is: 49,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.28 : 149,528.57 = 33,129.54 : x
  2. Step 2: Convert to fraction form
    99,707.28/149,528.57 = 33,129.54/x
  3. Step 3: Cross multiply
    99,707.28x = 149,528.57 × 33,129.54
  4. Step 4: Simplify right side
    99,707.28x = 4,953,811,993.31
  5. Step 5: Solve for x
    x = 4,953,811,993.31/99,707.28
  6. Step 6: Final answer
    x = 49,683.55

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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.