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Finding the Fourth Proportional to 101,757.42, 140,303.21 and 65,934.36

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Solution

The fourth proportional to 101,757.42, 140,303.21 and 65,934.36 is: 90,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,757.42 : 140,303.21 = 65,934.36 : x
  2. Step 2: Convert to fraction form
    101,757.42/140,303.21 = 65,934.36/x
  3. Step 3: Cross multiply
    101,757.42x = 140,303.21 × 65,934.36
  4. Step 4: Simplify right side
    101,757.42x = 9,250,802,027.62
  5. Step 5: Solve for x
    x = 9,250,802,027.62/101,757.42
  6. Step 6: Final answer
    x = 90,910.34

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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.