Home / 106,456.41-159,722.28-47,286.72

Finding the Fourth Proportional to 106,456.41, 159,722.28 and 47,286.72

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Solution

The fourth proportional to 106,456.41, 159,722.28 and 47,286.72 is: 70,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,456.41 : 159,722.28 = 47,286.72 : x
  2. Step 2: Convert to fraction form
    106,456.41/159,722.28 = 47,286.72/x
  3. Step 3: Cross multiply
    106,456.41x = 159,722.28 × 47,286.72
  4. Step 4: Simplify right side
    106,456.41x = 7,552,742,732.12
  5. Step 5: Solve for x
    x = 7,552,742,732.12/106,456.41
  6. Step 6: Final answer
    x = 70,946.81

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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.