Home / 142,229.20-213,272.16-47,425.76

Finding the Fourth Proportional to 142,229.20, 213,272.16 and 47,425.76

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Solution

The fourth proportional to 142,229.20, 213,272.16 and 47,425.76 is: 71,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,229.20 : 213,272.16 = 47,425.76 : x
  2. Step 2: Convert to fraction form
    142,229.20/213,272.16 = 47,425.76/x
  3. Step 3: Cross multiply
    142,229.20x = 213,272.16 × 47,425.76
  4. Step 4: Simplify right side
    142,229.20x = 10,114,594,274.84
  5. Step 5: Solve for x
    x = 10,114,594,274.84/142,229.20
  6. Step 6: Final answer
    x = 71,114.75

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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.