Home / 107,920.81-161,927.94-57,942.58

Finding the Fourth Proportional to 107,920.81, 161,927.94 and 57,942.58

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Solution

The fourth proportional to 107,920.81, 161,927.94 and 57,942.58 is: 86,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,920.81 : 161,927.94 = 57,942.58 : x
  2. Step 2: Convert to fraction form
    107,920.81/161,927.94 = 57,942.58/x
  3. Step 3: Cross multiply
    107,920.81x = 161,927.94 × 57,942.58
  4. Step 4: Simplify right side
    107,920.81x = 9,382,522,617.69
  5. Step 5: Solve for x
    x = 9,382,522,617.69/107,920.81
  6. Step 6: Final answer
    x = 86,938.96

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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.