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Finding the Fourth Proportional to 131,703.60, 197,101.80 and 79,150.80

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Solution

The fourth proportional to 131,703.60, 197,101.80 and 79,150.80 is: 118,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,703.60 : 197,101.80 = 79,150.80 : x
  2. Step 2: Convert to fraction form
    131,703.60/197,101.80 = 79,150.80/x
  3. Step 3: Cross multiply
    131,703.60x = 197,101.80 × 79,150.80
  4. Step 4: Simplify right side
    131,703.60x = 15,600,765,151.44
  5. Step 5: Solve for x
    x = 15,600,765,151.44/131,703.60
  6. Step 6: Final answer
    x = 118,453.60

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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.