Home / 92,541.96-138,868.20-85,013.19

Finding the Fourth Proportional to 92,541.96, 138,868.20 and 85,013.19

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Solution

The fourth proportional to 92,541.96, 138,868.20 and 85,013.19 is: 127,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,541.96 : 138,868.20 = 85,013.19 : x
  2. Step 2: Convert to fraction form
    92,541.96/138,868.20 = 85,013.19/x
  3. Step 3: Cross multiply
    92,541.96x = 138,868.20 × 85,013.19
  4. Step 4: Simplify right side
    92,541.96x = 11,805,628,671.56
  5. Step 5: Solve for x
    x = 11,805,628,671.56/92,541.96
  6. Step 6: Final answer
    x = 127,570.55

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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.