Home / 136,128.06-187,694.01-88,363.98

Finding the Fourth Proportional to 136,128.06, 187,694.01 and 88,363.98

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Solution

The fourth proportional to 136,128.06, 187,694.01 and 88,363.98 is: 121,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,128.06 : 187,694.01 = 88,363.98 : x
  2. Step 2: Convert to fraction form
    136,128.06/187,694.01 = 88,363.98/x
  3. Step 3: Cross multiply
    136,128.06x = 187,694.01 × 88,363.98
  4. Step 4: Simplify right side
    136,128.06x = 16,585,389,745.76
  5. Step 5: Solve for x
    x = 16,585,389,745.76/136,128.06
  6. Step 6: Final answer
    x = 121,836.67

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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.