Home / 115,106.31-158,846.99-66,717.59

Finding the Fourth Proportional to 115,106.31, 158,846.99 and 66,717.59

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Solution

The fourth proportional to 115,106.31, 158,846.99 and 66,717.59 is: 92,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,106.31 : 158,846.99 = 66,717.59 : x
  2. Step 2: Convert to fraction form
    115,106.31/158,846.99 = 66,717.59/x
  3. Step 3: Cross multiply
    115,106.31x = 158,846.99 × 66,717.59
  4. Step 4: Simplify right side
    115,106.31x = 10,597,887,223.73
  5. Step 5: Solve for x
    x = 10,597,887,223.73/115,106.31
  6. Step 6: Final answer
    x = 92,070.43

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1.5x scale

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.