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Finding the Fourth Proportional to 101,382.36, 139,851.54 and 58,936.20

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Solution

The fourth proportional to 101,382.36, 139,851.54 and 58,936.20 is: 81,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,382.36 : 139,851.54 = 58,936.20 : x
  2. Step 2: Convert to fraction form
    101,382.36/139,851.54 = 58,936.20/x
  3. Step 3: Cross multiply
    101,382.36x = 139,851.54 × 58,936.20
  4. Step 4: Simplify right side
    101,382.36x = 8,242,318,331.75
  5. Step 5: Solve for x
    x = 8,242,318,331.75/101,382.36
  6. Step 6: Final answer
    x = 81,299.33

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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.