Home / 225,939.51-311,799.65-123,963.08

Finding the Fourth Proportional to 225,939.51, 311,799.65 and 123,963.08

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Solution

The fourth proportional to 225,939.51, 311,799.65 and 123,963.08 is: 171,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,939.51 : 311,799.65 = 123,963.08 : x
  2. Step 2: Convert to fraction form
    225,939.51/311,799.65 = 123,963.08/x
  3. Step 3: Cross multiply
    225,939.51x = 311,799.65 × 123,963.08
  4. Step 4: Simplify right side
    225,939.51x = 38,651,642,778.11
  5. Step 5: Solve for x
    x = 38,651,642,778.11/225,939.51
  6. Step 6: Final answer
    x = 171,070.76

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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.