Home / 103,902.42-155,853.63-47,789.73

Finding the Fourth Proportional to 103,902.42, 155,853.63 and 47,789.73

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Solution

The fourth proportional to 103,902.42, 155,853.63 and 47,789.73 is: 71,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,902.42 : 155,853.63 = 47,789.73 : x
  2. Step 2: Convert to fraction form
    103,902.42/155,853.63 = 47,789.73/x
  3. Step 3: Cross multiply
    103,902.42x = 155,853.63 × 47,789.73
  4. Step 4: Simplify right side
    103,902.42x = 7,448,202,491.98
  5. Step 5: Solve for x
    x = 7,448,202,491.98/103,902.42
  6. Step 6: Final answer
    x = 71,684.59

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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.