Home / 131,623.25-181,640.07-74,274.71

Finding the Fourth Proportional to 131,623.25, 181,640.07 and 74,274.71

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Solution

The fourth proportional to 131,623.25, 181,640.07 and 74,274.71 is: 102,499.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,623.25 : 181,640.07 = 74,274.71 : x
  2. Step 2: Convert to fraction form
    131,623.25/181,640.07 = 74,274.71/x
  3. Step 3: Cross multiply
    131,623.25x = 181,640.07 × 74,274.71
  4. Step 4: Simplify right side
    131,623.25x = 13,491,262,615.43
  5. Step 5: Solve for x
    x = 13,491,262,615.43/131,623.25
  6. Step 6: Final answer
    x = 102,499.09

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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.