Home / 107,665.12-161,504.16-45,340.48

Finding the Fourth Proportional to 107,665.12, 161,504.16 and 45,340.48

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Solution

The fourth proportional to 107,665.12, 161,504.16 and 45,340.48 is: 68,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,665.12 : 161,504.16 = 45,340.48 : x
  2. Step 2: Convert to fraction form
    107,665.12/161,504.16 = 45,340.48/x
  3. Step 3: Cross multiply
    107,665.12x = 161,504.16 × 45,340.48
  4. Step 4: Simplify right side
    107,665.12x = 7,322,676,136.40
  5. Step 5: Solve for x
    x = 7,322,676,136.40/107,665.12
  6. Step 6: Final answer
    x = 68,013.45

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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.