Home / 120,617.07-166,342.62-75,299.26

Finding the Fourth Proportional to 120,617.07, 166,342.62 and 75,299.26

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Solution

The fourth proportional to 120,617.07, 166,342.62 and 75,299.26 is: 103,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,617.07 : 166,342.62 = 75,299.26 : x
  2. Step 2: Convert to fraction form
    120,617.07/166,342.62 = 75,299.26/x
  3. Step 3: Cross multiply
    120,617.07x = 166,342.62 × 75,299.26
  4. Step 4: Simplify right side
    120,617.07x = 12,525,476,192.46
  5. Step 5: Solve for x
    x = 12,525,476,192.46/120,617.07
  6. Step 6: Final answer
    x = 103,844.97

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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.