Home / 115,288.37-171,786.48-102,711.76

Finding the Fourth Proportional to 115,288.37, 171,786.48 and 102,711.76

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Solution

The fourth proportional to 115,288.37, 171,786.48 and 102,711.76 is: 153,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,288.37 : 171,786.48 = 102,711.76 : x
  2. Step 2: Convert to fraction form
    115,288.37/171,786.48 = 102,711.76/x
  3. Step 3: Cross multiply
    115,288.37x = 171,786.48 × 102,711.76
  4. Step 4: Simplify right side
    115,288.37x = 17,644,491,705.00
  5. Step 5: Solve for x
    x = 17,644,491,705.00/115,288.37
  6. Step 6: Final answer
    x = 153,046.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.