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Finding the Fourth Proportional to 92,223.40, 138,335.10 and 75,820.90

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Solution

The fourth proportional to 92,223.40, 138,335.10 and 75,820.90 is: 113,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,223.40 : 138,335.10 = 75,820.90 : x
  2. Step 2: Convert to fraction form
    92,223.40/138,335.10 = 75,820.90/x
  3. Step 3: Cross multiply
    92,223.40x = 138,335.10 × 75,820.90
  4. Step 4: Simplify right side
    92,223.40x = 10,488,691,783.59
  5. Step 5: Solve for x
    x = 10,488,691,783.59/92,223.40
  6. Step 6: Final answer
    x = 113,731.35

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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.