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Finding the Fourth Proportional to 97,027.20, 145,540.80 and 84,196.80

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Solution

The fourth proportional to 97,027.20, 145,540.80 and 84,196.80 is: 126,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,027.20 : 145,540.80 = 84,196.80 : x
  2. Step 2: Convert to fraction form
    97,027.20/145,540.80 = 84,196.80/x
  3. Step 3: Cross multiply
    97,027.20x = 145,540.80 × 84,196.80
  4. Step 4: Simplify right side
    97,027.20x = 12,254,069,629.44
  5. Step 5: Solve for x
    x = 12,254,069,629.44/97,027.20
  6. Step 6: Final answer
    x = 126,295.20

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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.