Home / 138,589.06-191,252.92-74,926.84

Finding the Fourth Proportional to 138,589.06, 191,252.92 and 74,926.84

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Solution

The fourth proportional to 138,589.06, 191,252.92 and 74,926.84 is: 103,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,589.06 : 191,252.92 = 74,926.84 : x
  2. Step 2: Convert to fraction form
    138,589.06/191,252.92 = 74,926.84/x
  3. Step 3: Cross multiply
    138,589.06x = 191,252.92 × 74,926.84
  4. Step 4: Simplify right side
    138,589.06x = 14,329,976,936.37
  5. Step 5: Solve for x
    x = 14,329,976,936.37/138,589.06
  6. Step 6: Final answer
    x = 103,399.05

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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.