Home / 126,889.07-175,027.64-81,626.00

Finding the Fourth Proportional to 126,889.07, 175,027.64 and 81,626.00

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Solution

The fourth proportional to 126,889.07, 175,027.64 and 81,626.00 is: 112,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,889.07 : 175,027.64 = 81,626.00 : x
  2. Step 2: Convert to fraction form
    126,889.07/175,027.64 = 81,626.00/x
  3. Step 3: Cross multiply
    126,889.07x = 175,027.64 × 81,626.00
  4. Step 4: Simplify right side
    126,889.07x = 14,286,804,859.37
  5. Step 5: Solve for x
    x = 14,286,804,859.37/126,889.07
  6. Step 6: Final answer
    x = 112,592.88

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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.