Home / 121,309.40-182,020.46-46,404.78

Finding the Fourth Proportional to 121,309.40, 182,020.46 and 46,404.78

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Solution

The fourth proportional to 121,309.40, 182,020.46 and 46,404.78 is: 69,628.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,309.40 : 182,020.46 = 46,404.78 : x
  2. Step 2: Convert to fraction form
    121,309.40/182,020.46 = 46,404.78/x
  3. Step 3: Cross multiply
    121,309.40x = 182,020.46 × 46,404.78
  4. Step 4: Simplify right side
    121,309.40x = 8,446,619,169.77
  5. Step 5: Solve for x
    x = 8,446,619,169.77/121,309.40
  6. Step 6: Final answer
    x = 69,628.73

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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.