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Finding the Fourth Proportional to 92,214.70, 138,212.70 and 82,810.60

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Solution

The fourth proportional to 92,214.70, 138,212.70 and 82,810.60 is: 124,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,214.70 : 138,212.70 = 82,810.60 : x
  2. Step 2: Convert to fraction form
    92,214.70/138,212.70 = 82,810.60/x
  3. Step 3: Cross multiply
    92,214.70x = 138,212.70 × 82,810.60
  4. Step 4: Simplify right side
    92,214.70x = 11,445,476,614.62
  5. Step 5: Solve for x
    x = 11,445,476,614.62/92,214.70
  6. Step 6: Final answer
    x = 124,117.70

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1.5x scale

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.