Home / 97,193.20-145,596.40-77,236.80

Finding the Fourth Proportional to 97,193.20, 145,596.40 and 77,236.80

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Solution

The fourth proportional to 97,193.20, 145,596.40 and 77,236.80 is: 115,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,193.20 : 145,596.40 = 77,236.80 : x
  2. Step 2: Convert to fraction form
    97,193.20/145,596.40 = 77,236.80/x
  3. Step 3: Cross multiply
    97,193.20x = 145,596.40 × 77,236.80
  4. Step 4: Simplify right side
    97,193.20x = 11,245,400,027.52
  5. Step 5: Solve for x
    x = 11,245,400,027.52/97,193.20
  6. Step 6: Final answer
    x = 115,701.51

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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.