Home / 92,214.80-138,322.20-90,902.60

Finding the Fourth Proportional to 92,214.80, 138,322.20 and 90,902.60

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Solution

The fourth proportional to 92,214.80, 138,322.20 and 90,902.60 is: 136,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,214.80 : 138,322.20 = 90,902.60 : x
  2. Step 2: Convert to fraction form
    92,214.80/138,322.20 = 90,902.60/x
  3. Step 3: Cross multiply
    92,214.80x = 138,322.20 × 90,902.60
  4. Step 4: Simplify right side
    92,214.80x = 12,573,847,617.72
  5. Step 5: Solve for x
    x = 12,573,847,617.72/92,214.80
  6. Step 6: Final answer
    x = 136,353.90

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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.