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Finding the Fourth Proportional to 128,273.70, 192,410.55 and 92,844.30

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Solution

The fourth proportional to 128,273.70, 192,410.55 and 92,844.30 is: 139,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,273.70 : 192,410.55 = 92,844.30 : x
  2. Step 2: Convert to fraction form
    128,273.70/192,410.55 = 92,844.30/x
  3. Step 3: Cross multiply
    128,273.70x = 192,410.55 × 92,844.30
  4. Step 4: Simplify right side
    128,273.70x = 17,864,222,827.37
  5. Step 5: Solve for x
    x = 17,864,222,827.37/128,273.70
  6. Step 6: Final answer
    x = 139,266.45

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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.