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Finding the Fourth Proportional to 171,137.60, 256,360.80 and 97,179.20

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Solution

The fourth proportional to 171,137.60, 256,360.80 and 97,179.20 is: 145,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,137.60 : 256,360.80 = 97,179.20 : x
  2. Step 2: Convert to fraction form
    171,137.60/256,360.80 = 97,179.20/x
  3. Step 3: Cross multiply
    171,137.60x = 256,360.80 × 97,179.20
  4. Step 4: Simplify right side
    171,137.60x = 24,912,937,455.36
  5. Step 5: Solve for x
    x = 24,912,937,455.36/171,137.60
  6. Step 6: Final answer
    x = 145,572.55

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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.