Home / 107,638.46-161,457.79-51,465.36

Finding the Fourth Proportional to 107,638.46, 161,457.79 and 51,465.36

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Solution

The fourth proportional to 107,638.46, 161,457.79 and 51,465.36 is: 77,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,638.46 : 161,457.79 = 51,465.36 : x
  2. Step 2: Convert to fraction form
    107,638.46/161,457.79 = 51,465.36/x
  3. Step 3: Cross multiply
    107,638.46x = 161,457.79 × 51,465.36
  4. Step 4: Simplify right side
    107,638.46x = 8,309,483,287.15
  5. Step 5: Solve for x
    x = 8,309,483,287.15/107,638.46
  6. Step 6: Final answer
    x = 77,198.09

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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.