Home / 138,589.25-191,253.39-74,927.05

Finding the Fourth Proportional to 138,589.25, 191,253.39 and 74,927.05

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Solution

The fourth proportional to 138,589.25, 191,253.39 and 74,927.05 is: 103,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,589.25 : 191,253.39 = 74,927.05 : x
  2. Step 2: Convert to fraction form
    138,589.25/191,253.39 = 74,927.05/x
  3. Step 3: Cross multiply
    138,589.25x = 191,253.39 × 74,927.05
  4. Step 4: Simplify right side
    138,589.25x = 14,330,051,556.09
  5. Step 5: Solve for x
    x = 14,330,051,556.09/138,589.25
  6. Step 6: Final answer
    x = 103,399.44

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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.