Home / 147,035.76-220,161.96-100,379.76

Finding the Fourth Proportional to 147,035.76, 220,161.96 and 100,379.76

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Solution

The fourth proportional to 147,035.76, 220,161.96 and 100,379.76 is: 150,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,035.76 : 220,161.96 = 100,379.76 : x
  2. Step 2: Convert to fraction form
    147,035.76/220,161.96 = 100,379.76/x
  3. Step 3: Cross multiply
    147,035.76x = 220,161.96 × 100,379.76
  4. Step 4: Simplify right side
    147,035.76x = 22,099,804,705.93
  5. Step 5: Solve for x
    x = 22,099,804,705.93/147,035.76
  6. Step 6: Final answer
    x = 150,302.24

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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.