Home / 122,720.64-169,350.66-69,007.92

Finding the Fourth Proportional to 122,720.64, 169,350.66 and 69,007.92

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Solution

The fourth proportional to 122,720.64, 169,350.66 and 69,007.92 is: 95,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,720.64 : 169,350.66 = 69,007.92 : x
  2. Step 2: Convert to fraction form
    122,720.64/169,350.66 = 69,007.92/x
  3. Step 3: Cross multiply
    122,720.64x = 169,350.66 × 69,007.92
  4. Step 4: Simplify right side
    122,720.64x = 11,686,536,797.23
  5. Step 5: Solve for x
    x = 11,686,536,797.23/122,720.64
  6. Step 6: Final answer
    x = 95,228.78

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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.