Home / 131,560.71-181,636.79-91,260.37

Finding the Fourth Proportional to 131,560.71, 181,636.79 and 91,260.37

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Solution

The fourth proportional to 131,560.71, 181,636.79 and 91,260.37 is: 125,996.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,560.71 : 181,636.79 = 91,260.37 : x
  2. Step 2: Convert to fraction form
    131,560.71/181,636.79 = 91,260.37/x
  3. Step 3: Cross multiply
    131,560.71x = 181,636.79 × 91,260.37
  4. Step 4: Simplify right side
    131,560.71x = 16,576,240,661.01
  5. Step 5: Solve for x
    x = 16,576,240,661.01/131,560.71
  6. Step 6: Final answer
    x = 125,996.89

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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.