Home / 107,457.20-161,147.40-48,321.20

Finding the Fourth Proportional to 107,457.20, 161,147.40 and 48,321.20

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Solution

The fourth proportional to 107,457.20, 161,147.40 and 48,321.20 is: 72,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,457.20 : 161,147.40 = 48,321.20 : x
  2. Step 2: Convert to fraction form
    107,457.20/161,147.40 = 48,321.20/x
  3. Step 3: Cross multiply
    107,457.20x = 161,147.40 × 48,321.20
  4. Step 4: Simplify right side
    107,457.20x = 7,786,835,744.88
  5. Step 5: Solve for x
    x = 7,786,835,744.88/107,457.20
  6. Step 6: Final answer
    x = 72,464.53

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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.