Home / 142,546.20-213,866.80-47,785.75

Finding the Fourth Proportional to 142,546.20, 213,866.80 and 47,785.75

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Solution

The fourth proportional to 142,546.20, 213,866.80 and 47,785.75 is: 71,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,546.20 : 213,866.80 = 47,785.75 : x
  2. Step 2: Convert to fraction form
    142,546.20/213,866.80 = 47,785.75/x
  3. Step 3: Cross multiply
    142,546.20x = 213,866.80 × 47,785.75
  4. Step 4: Simplify right side
    142,546.20x = 10,219,784,783.97
  5. Step 5: Solve for x
    x = 10,219,784,783.97/142,546.20
  6. Step 6: Final answer
    x = 71,694.55

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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.