Home / 132,921.81-199,382.72-39,426.75

Finding the Fourth Proportional to 132,921.81, 199,382.72 and 39,426.75

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Solution

The fourth proportional to 132,921.81, 199,382.72 and 39,426.75 is: 59,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,921.81 : 199,382.72 = 39,426.75 : x
  2. Step 2: Convert to fraction form
    132,921.81/199,382.72 = 39,426.75/x
  3. Step 3: Cross multiply
    132,921.81x = 199,382.72 × 39,426.75
  4. Step 4: Simplify right side
    132,921.81x = 7,861,012,458.63
  5. Step 5: Solve for x
    x = 7,861,012,458.63/132,921.81
  6. Step 6: Final answer
    x = 59,140.13

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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.