Home / 92,213.10-138,319.65-82,881.90

Finding the Fourth Proportional to 92,213.10, 138,319.65 and 82,881.90

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Solution

The fourth proportional to 92,213.10, 138,319.65 and 82,881.90 is: 124,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,213.10 : 138,319.65 = 82,881.90 : x
  2. Step 2: Convert to fraction form
    92,213.10/138,319.65 = 82,881.90/x
  3. Step 3: Cross multiply
    92,213.10x = 138,319.65 × 82,881.90
  4. Step 4: Simplify right side
    92,213.10x = 11,464,195,399.34
  5. Step 5: Solve for x
    x = 11,464,195,399.34/92,213.10
  6. Step 6: Final answer
    x = 124,322.85

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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.