Home / 106,276.28-159,376.79-31,376.39

Finding the Fourth Proportional to 106,276.28, 159,376.79 and 31,376.39

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Solution

The fourth proportional to 106,276.28, 159,376.79 and 31,376.39 is: 47,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,276.28 : 159,376.79 = 31,376.39 : x
  2. Step 2: Convert to fraction form
    106,276.28/159,376.79 = 31,376.39/x
  3. Step 3: Cross multiply
    106,276.28x = 159,376.79 × 31,376.39
  4. Step 4: Simplify right side
    106,276.28x = 5,000,667,601.55
  5. Step 5: Solve for x
    x = 5,000,667,601.55/106,276.28
  6. Step 6: Final answer
    x = 47,053.47

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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.