Home / 70,209.80-105,359.16-51,198.92

Finding the Fourth Proportional to 70,209.80, 105,359.16 and 51,198.92

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Solution

The fourth proportional to 70,209.80, 105,359.16 and 51,198.92 is: 76,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.80 : 105,359.16 = 51,198.92 : x
  2. Step 2: Convert to fraction form
    70,209.80/105,359.16 = 51,198.92/x
  3. Step 3: Cross multiply
    70,209.80x = 105,359.16 × 51,198.92
  4. Step 4: Simplify right side
    70,209.80x = 5,394,275,204.11
  5. Step 5: Solve for x
    x = 5,394,275,204.11/70,209.80
  6. Step 6: Final answer
    x = 76,830.80

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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.