Home / 135,255.08-186,640.26-74,824.76

Finding the Fourth Proportional to 135,255.08, 186,640.26 and 74,824.76

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Solution

The fourth proportional to 135,255.08, 186,640.26 and 74,824.76 is: 103,251.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,255.08 : 186,640.26 = 74,824.76 : x
  2. Step 2: Convert to fraction form
    135,255.08/186,640.26 = 74,824.76/x
  3. Step 3: Cross multiply
    135,255.08x = 186,640.26 × 74,824.76
  4. Step 4: Simplify right side
    135,255.08x = 13,965,312,660.84
  5. Step 5: Solve for x
    x = 13,965,312,660.84/135,255.08
  6. Step 6: Final answer
    x = 103,251.67

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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.