Home / 107,477.23-161,217.36-40,921

Finding the Fourth Proportional to 107,477.23, 161,217.36 and 40,921

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Solution

The fourth proportional to 107,477.23, 161,217.36 and 40,921 is: 61,382.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,477.23 : 161,217.36 = 40,921 : x
  2. Step 2: Convert to fraction form
    107,477.23/161,217.36 = 40,921/x
  3. Step 3: Cross multiply
    107,477.23x = 161,217.36 × 40,921
  4. Step 4: Simplify right side
    107,477.23x = 6,597,175,588.56
  5. Step 5: Solve for x
    x = 6,597,175,588.56/107,477.23
  6. Step 6: Final answer
    x = 61,382.08

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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.