Home / 128,135.56-192,208.40-48,165.44

Finding the Fourth Proportional to 128,135.56, 192,208.40 and 48,165.44

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Solution

The fourth proportional to 128,135.56, 192,208.40 and 48,165.44 is: 72,250.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,135.56 : 192,208.40 = 48,165.44 : x
  2. Step 2: Convert to fraction form
    128,135.56/192,208.40 = 48,165.44/x
  3. Step 3: Cross multiply
    128,135.56x = 192,208.40 × 48,165.44
  4. Step 4: Simplify right side
    128,135.56x = 9,257,802,157.70
  5. Step 5: Solve for x
    x = 9,257,802,157.70/128,135.56
  6. Step 6: Final answer
    x = 72,250.06

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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.