Home / 107,911.28-161,939.64-37,791.20

Finding the Fourth Proportional to 107,911.28, 161,939.64 and 37,791.20

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Solution

The fourth proportional to 107,911.28, 161,939.64 and 37,791.20 is: 56,712.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,911.28 : 161,939.64 = 37,791.20 : x
  2. Step 2: Convert to fraction form
    107,911.28/161,939.64 = 37,791.20/x
  3. Step 3: Cross multiply
    107,911.28x = 161,939.64 × 37,791.20
  4. Step 4: Simplify right side
    107,911.28x = 6,119,893,323.17
  5. Step 5: Solve for x
    x = 6,119,893,323.17/107,911.28
  6. Step 6: Final answer
    x = 56,712.27

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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.