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Finding the Fourth Proportional to 126,594.60, 174,700.24 and 72,860

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Solution

The fourth proportional to 126,594.60, 174,700.24 and 72,860 is: 100,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,594.60 : 174,700.24 = 72,860 : x
  2. Step 2: Convert to fraction form
    126,594.60/174,700.24 = 72,860/x
  3. Step 3: Cross multiply
    126,594.60x = 174,700.24 × 72,860
  4. Step 4: Simplify right side
    126,594.60x = 12,728,659,486.40
  5. Step 5: Solve for x
    x = 12,728,659,486.40/126,594.60
  6. Step 6: Final answer
    x = 100,546.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.