Home / 113,934.36-170,936.10-80,718.69

Finding the Fourth Proportional to 113,934.36, 170,936.10 and 80,718.69

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Solution

The fourth proportional to 113,934.36, 170,936.10 and 80,718.69 is: 121,102.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,934.36 : 170,936.10 = 80,718.69 : x
  2. Step 2: Convert to fraction form
    113,934.36/170,936.10 = 80,718.69/x
  3. Step 3: Cross multiply
    113,934.36x = 170,936.10 × 80,718.69
  4. Step 4: Simplify right side
    113,934.36x = 13,797,738,065.71
  5. Step 5: Solve for x
    x = 13,797,738,065.71/113,934.36
  6. Step 6: Final answer
    x = 121,102.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.