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Finding the Fourth Proportional to 101,959.14, 140,664.36 and 75,165.36

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Solution

The fourth proportional to 101,959.14, 140,664.36 and 75,165.36 is: 103,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,959.14 : 140,664.36 = 75,165.36 : x
  2. Step 2: Convert to fraction form
    101,959.14/140,664.36 = 75,165.36/x
  3. Step 3: Cross multiply
    101,959.14x = 140,664.36 × 75,165.36
  4. Step 4: Simplify right side
    101,959.14x = 10,573,087,258.57
  5. Step 5: Solve for x
    x = 10,573,087,258.57/101,959.14
  6. Step 6: Final answer
    x = 103,699.26

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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.