Home / 92,724.47-138,870.40-67,702.46

Finding the Fourth Proportional to 92,724.47, 138,870.40 and 67,702.46

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Solution

The fourth proportional to 92,724.47, 138,870.40 and 67,702.46 is: 101,395.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,724.47 : 138,870.40 = 67,702.46 : x
  2. Step 2: Convert to fraction form
    92,724.47/138,870.40 = 67,702.46/x
  3. Step 3: Cross multiply
    92,724.47x = 138,870.40 × 67,702.46
  4. Step 4: Simplify right side
    92,724.47x = 9,401,867,355.09
  5. Step 5: Solve for x
    x = 9,401,867,355.09/92,724.47
  6. Step 6: Final answer
    x = 101,395.75

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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.