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Finding the Fourth Proportional to 142,422.91, 213,634.36 and 37,240.97

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Solution

The fourth proportional to 142,422.91, 213,634.36 and 37,240.97 is: 55,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,422.91 : 213,634.36 = 37,240.97 : x
  2. Step 2: Convert to fraction form
    142,422.91/213,634.36 = 37,240.97/x
  3. Step 3: Cross multiply
    142,422.91x = 213,634.36 × 37,240.97
  4. Step 4: Simplify right side
    142,422.91x = 7,955,949,770.11
  5. Step 5: Solve for x
    x = 7,955,949,770.11/142,422.91
  6. Step 6: Final answer
    x = 55,861.45

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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.