Home / 106,405.92-159,552.70-47,215.80

Finding the Fourth Proportional to 106,405.92, 159,552.70 and 47,215.80

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Solution

The fourth proportional to 106,405.92, 159,552.70 and 47,215.80 is: 70,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,405.92 : 159,552.70 = 47,215.80 : x
  2. Step 2: Convert to fraction form
    106,405.92/159,552.70 = 47,215.80/x
  3. Step 3: Cross multiply
    106,405.92x = 159,552.70 × 47,215.80
  4. Step 4: Simplify right side
    106,405.92x = 7,533,408,372.66
  5. Step 5: Solve for x
    x = 7,533,408,372.66/106,405.92
  6. Step 6: Final answer
    x = 70,798.77

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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.