Home / 92,543.36-138,870.33-85,014.61

Finding the Fourth Proportional to 92,543.36, 138,870.33 and 85,014.61

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Solution

The fourth proportional to 92,543.36, 138,870.33 and 85,014.61 is: 127,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,543.36 : 138,870.33 = 85,014.61 : x
  2. Step 2: Convert to fraction form
    92,543.36/138,870.33 = 85,014.61/x
  3. Step 3: Cross multiply
    92,543.36x = 138,870.33 × 85,014.61
  4. Step 4: Simplify right side
    92,543.36x = 11,806,006,251.17
  5. Step 5: Solve for x
    x = 11,806,006,251.17/92,543.36
  6. Step 6: Final answer
    x = 127,572.71

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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.