Home / 107,723.80-161,520.90-55,235.80

Finding the Fourth Proportional to 107,723.80, 161,520.90 and 55,235.80

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Solution

The fourth proportional to 107,723.80, 161,520.90 and 55,235.80 is: 82,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,723.80 : 161,520.90 = 55,235.80 : x
  2. Step 2: Convert to fraction form
    107,723.80/161,520.90 = 55,235.80/x
  3. Step 3: Cross multiply
    107,723.80x = 161,520.90 × 55,235.80
  4. Step 4: Simplify right side
    107,723.80x = 8,921,736,128.22
  5. Step 5: Solve for x
    x = 8,921,736,128.22/107,723.80
  6. Step 6: Final answer
    x = 82,820.47

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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.