Home / 126,138.06-174,071.70-69,551.46

Finding the Fourth Proportional to 126,138.06, 174,071.70 and 69,551.46

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Solution

The fourth proportional to 126,138.06, 174,071.70 and 69,551.46 is: 95,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138.06 : 174,071.70 = 69,551.46 : x
  2. Step 2: Convert to fraction form
    126,138.06/174,071.70 = 69,551.46/x
  3. Step 3: Cross multiply
    126,138.06x = 174,071.70 × 69,551.46
  4. Step 4: Simplify right side
    126,138.06x = 12,106,940,879.68
  5. Step 5: Solve for x
    x = 12,106,940,879.68/126,138.06
  6. Step 6: Final answer
    x = 95,981.66

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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.