Home / 100,047.20-149,972.36-47,493.59

Finding the Fourth Proportional to 100,047.20, 149,972.36 and 47,493.59

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Solution

The fourth proportional to 100,047.20, 149,972.36 and 47,493.59 is: 71,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,047.20 : 149,972.36 = 47,493.59 : x
  2. Step 2: Convert to fraction form
    100,047.20/149,972.36 = 47,493.59/x
  3. Step 3: Cross multiply
    100,047.20x = 149,972.36 × 47,493.59
  4. Step 4: Simplify right side
    100,047.20x = 7,122,724,789.84
  5. Step 5: Solve for x
    x = 7,122,724,789.84/100,047.20
  6. Step 6: Final answer
    x = 71,193.65

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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.