Home / 134,449.74-185,537.25-74,019.78

Finding the Fourth Proportional to 134,449.74, 185,537.25 and 74,019.78

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Solution

The fourth proportional to 134,449.74, 185,537.25 and 74,019.78 is: 102,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,449.74 : 185,537.25 = 74,019.78 : x
  2. Step 2: Convert to fraction form
    134,449.74/185,537.25 = 74,019.78/x
  3. Step 3: Cross multiply
    134,449.74x = 185,537.25 × 74,019.78
  4. Step 4: Simplify right side
    134,449.74x = 13,733,426,426.81
  5. Step 5: Solve for x
    x = 13,733,426,426.81/134,449.74
  6. Step 6: Final answer
    x = 102,145.43

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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.