Home / 98,704.48-136,088.61-82,375.11

Finding the Fourth Proportional to 98,704.48, 136,088.61 and 82,375.11

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Solution

The fourth proportional to 98,704.48, 136,088.61 and 82,375.11 is: 113,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,704.48 : 136,088.61 = 82,375.11 : x
  2. Step 2: Convert to fraction form
    98,704.48/136,088.61 = 82,375.11/x
  3. Step 3: Cross multiply
    98,704.48x = 136,088.61 × 82,375.11
  4. Step 4: Simplify right side
    98,704.48x = 11,210,313,909.59
  5. Step 5: Solve for x
    x = 11,210,313,909.59/98,704.48
  6. Step 6: Final answer
    x = 113,574.52

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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.