Home / 126,929.54-175,182.06-81,009.00

Finding the Fourth Proportional to 126,929.54, 175,182.06 and 81,009.00

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Solution

The fourth proportional to 126,929.54, 175,182.06 and 81,009.00 is: 111,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,929.54 : 175,182.06 = 81,009.00 : x
  2. Step 2: Convert to fraction form
    126,929.54/175,182.06 = 81,009.00/x
  3. Step 3: Cross multiply
    126,929.54x = 175,182.06 × 81,009.00
  4. Step 4: Simplify right side
    126,929.54x = 14,191,323,836.68
  5. Step 5: Solve for x
    x = 14,191,323,836.68/126,929.54
  6. Step 6: Final answer
    x = 111,804.73

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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.