Home / 107,433.20-161,149.80-28,555.40

Finding the Fourth Proportional to 107,433.20, 161,149.80 and 28,555.40

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Solution

The fourth proportional to 107,433.20, 161,149.80 and 28,555.40 is: 42,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,433.20 : 161,149.80 = 28,555.40 : x
  2. Step 2: Convert to fraction form
    107,433.20/161,149.80 = 28,555.40/x
  3. Step 3: Cross multiply
    107,433.20x = 161,149.80 × 28,555.40
  4. Step 4: Simplify right side
    107,433.20x = 4,601,696,998.92
  5. Step 5: Solve for x
    x = 4,601,696,998.92/107,433.20
  6. Step 6: Final answer
    x = 42,833.10

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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.