Home / 92,276.70-138,415.05-91,401.90

Finding the Fourth Proportional to 92,276.70, 138,415.05 and 91,401.90

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Solution

The fourth proportional to 92,276.70, 138,415.05 and 91,401.90 is: 137,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,276.70 : 138,415.05 = 91,401.90 : x
  2. Step 2: Convert to fraction form
    92,276.70/138,415.05 = 91,401.90/x
  3. Step 3: Cross multiply
    92,276.70x = 138,415.05 × 91,401.90
  4. Step 4: Simplify right side
    92,276.70x = 12,651,398,558.60
  5. Step 5: Solve for x
    x = 12,651,398,558.60/92,276.70
  6. Step 6: Final answer
    x = 137,102.85

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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.