Home / 100,188.34-150,178.83-47,557.78

Finding the Fourth Proportional to 100,188.34, 150,178.83 and 47,557.78

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Solution

The fourth proportional to 100,188.34, 150,178.83 and 47,557.78 is: 71,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.34 : 150,178.83 = 47,557.78 : x
  2. Step 2: Convert to fraction form
    100,188.34/150,178.83 = 47,557.78/x
  3. Step 3: Cross multiply
    100,188.34x = 150,178.83 × 47,557.78
  4. Step 4: Simplify right side
    100,188.34x = 7,142,171,757.80
  5. Step 5: Solve for x
    x = 7,142,171,757.80/100,188.34
  6. Step 6: Final answer
    x = 71,287.45

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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.