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Finding the Fourth Proportional to 173,996.10, 260,994.15 and 85,422.60

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Solution

The fourth proportional to 173,996.10, 260,994.15 and 85,422.60 is: 128,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,996.10 : 260,994.15 = 85,422.60 : x
  2. Step 2: Convert to fraction form
    173,996.10/260,994.15 = 85,422.60/x
  3. Step 3: Cross multiply
    173,996.10x = 260,994.15 × 85,422.60
  4. Step 4: Simplify right side
    173,996.10x = 22,294,798,877.79
  5. Step 5: Solve for x
    x = 22,294,798,877.79/173,996.10
  6. Step 6: Final answer
    x = 128,133.90

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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.