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Finding the Fourth Proportional to 104,115.70, 143,921.79 and 92,896.39

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Solution

The fourth proportional to 104,115.70, 143,921.79 and 92,896.39 is: 128,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,115.70 : 143,921.79 = 92,896.39 : x
  2. Step 2: Convert to fraction form
    104,115.70/143,921.79 = 92,896.39/x
  3. Step 3: Cross multiply
    104,115.70x = 143,921.79 × 92,896.39
  4. Step 4: Simplify right side
    104,115.70x = 13,369,814,733.34
  5. Step 5: Solve for x
    x = 13,369,814,733.34/104,115.70
  6. Step 6: Final answer
    x = 128,413.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.