Home / 100,712.34-151,077.15-48,163.86

Finding the Fourth Proportional to 100,712.34, 151,077.15 and 48,163.86

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Solution

The fourth proportional to 100,712.34, 151,077.15 and 48,163.86 is: 72,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,712.34 : 151,077.15 = 48,163.86 : x
  2. Step 2: Convert to fraction form
    100,712.34/151,077.15 = 48,163.86/x
  3. Step 3: Cross multiply
    100,712.34x = 151,077.15 × 48,163.86
  4. Step 4: Simplify right side
    100,712.34x = 7,276,458,701.80
  5. Step 5: Solve for x
    x = 7,276,458,701.80/100,712.34
  6. Step 6: Final answer
    x = 72,249.92

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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.