Home / 107,457.20-161,185.80-54,313.10

Finding the Fourth Proportional to 107,457.20, 161,185.80 and 54,313.10

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Solution

The fourth proportional to 107,457.20, 161,185.80 and 54,313.10 is: 81,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,457.20 : 161,185.80 = 54,313.10 : x
  2. Step 2: Convert to fraction form
    107,457.20/161,185.80 = 54,313.10/x
  3. Step 3: Cross multiply
    107,457.20x = 161,185.80 × 54,313.10
  4. Step 4: Simplify right side
    107,457.20x = 8,754,500,473.98
  5. Step 5: Solve for x
    x = 8,754,500,473.98/107,457.20
  6. Step 6: Final answer
    x = 81,469.65

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1.5x scale

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.