Home / 92,120.73-138,173.16-56,087.85

Finding the Fourth Proportional to 92,120.73, 138,173.16 and 56,087.85

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Solution

The fourth proportional to 92,120.73, 138,173.16 and 56,087.85 is: 84,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,120.73 : 138,173.16 = 56,087.85 : x
  2. Step 2: Convert to fraction form
    92,120.73/138,173.16 = 56,087.85/x
  3. Step 3: Cross multiply
    92,120.73x = 138,173.16 × 56,087.85
  4. Step 4: Simplify right side
    92,120.73x = 7,749,835,472.11
  5. Step 5: Solve for x
    x = 7,749,835,472.11/92,120.73
  6. Step 6: Final answer
    x = 84,126.94

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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.