Home / 135,375.36-186,811.92-74,941.71

Finding the Fourth Proportional to 135,375.36, 186,811.92 and 74,941.71

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Solution

The fourth proportional to 135,375.36, 186,811.92 and 74,941.71 is: 103,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,375.36 : 186,811.92 = 74,941.71 : x
  2. Step 2: Convert to fraction form
    135,375.36/186,811.92 = 74,941.71/x
  3. Step 3: Cross multiply
    135,375.36x = 186,811.92 × 74,941.71
  4. Step 4: Simplify right side
    135,375.36x = 14,000,004,733.18
  5. Step 5: Solve for x
    x = 14,000,004,733.18/135,375.36
  6. Step 6: Final answer
    x = 103,416.20

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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.