Home / 107,638.14-161,457.30-51,465

Finding the Fourth Proportional to 107,638.14, 161,457.30 and 51,465

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Solution

The fourth proportional to 107,638.14, 161,457.30 and 51,465 is: 77,197.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,638.14 : 161,457.30 = 51,465 : x
  2. Step 2: Convert to fraction form
    107,638.14/161,457.30 = 51,465/x
  3. Step 3: Cross multiply
    107,638.14x = 161,457.30 × 51,465
  4. Step 4: Simplify right side
    107,638.14x = 8,309,399,944.50
  5. Step 5: Solve for x
    x = 8,309,399,944.50/107,638.14
  6. Step 6: Final answer
    x = 77,197.54

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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.