Home / 107,800.20-161,708.70-28,913.64

Finding the Fourth Proportional to 107,800.20, 161,708.70 and 28,913.64

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Solution

The fourth proportional to 107,800.20, 161,708.70 and 28,913.64 is: 43,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,800.20 : 161,708.70 = 28,913.64 : x
  2. Step 2: Convert to fraction form
    107,800.20/161,708.70 = 28,913.64/x
  3. Step 3: Cross multiply
    107,800.20x = 161,708.70 × 28,913.64
  4. Step 4: Simplify right side
    107,800.20x = 4,675,587,136.67
  5. Step 5: Solve for x
    x = 4,675,587,136.67/107,800.20
  6. Step 6: Final answer
    x = 43,372.71

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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.