Home / 106,495.41-159,780.78-47,325.72

Finding the Fourth Proportional to 106,495.41, 159,780.78 and 47,325.72

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Solution

The fourth proportional to 106,495.41, 159,780.78 and 47,325.72 is: 71,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,495.41 : 159,780.78 = 47,325.72 : x
  2. Step 2: Convert to fraction form
    106,495.41/159,780.78 = 47,325.72/x
  3. Step 3: Cross multiply
    106,495.41x = 159,780.78 × 47,325.72
  4. Step 4: Simplify right side
    106,495.41x = 7,561,740,455.66
  5. Step 5: Solve for x
    x = 7,561,740,455.66/106,495.41
  6. Step 6: Final answer
    x = 71,005.32

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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.