Home / 100,761.16-151,161.18-56,437.96

Finding the Fourth Proportional to 100,761.16, 151,161.18 and 56,437.96

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Solution

The fourth proportional to 100,761.16, 151,161.18 and 56,437.96 is: 84,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,761.16 : 151,161.18 = 56,437.96 : x
  2. Step 2: Convert to fraction form
    100,761.16/151,161.18 = 56,437.96/x
  3. Step 3: Cross multiply
    100,761.16x = 151,161.18 × 56,437.96
  4. Step 4: Simplify right side
    100,761.16x = 8,531,228,630.39
  5. Step 5: Solve for x
    x = 8,531,228,630.39/100,761.16
  6. Step 6: Final answer
    x = 84,667.83

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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.