Home / 134,709.12-185,894.60-74,279.75

Finding the Fourth Proportional to 134,709.12, 185,894.60 and 74,279.75

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Solution

The fourth proportional to 134,709.12, 185,894.60 and 74,279.75 is: 102,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,709.12 : 185,894.60 = 74,279.75 : x
  2. Step 2: Convert to fraction form
    134,709.12/185,894.60 = 74,279.75/x
  3. Step 3: Cross multiply
    134,709.12x = 185,894.60 × 74,279.75
  4. Step 4: Simplify right side
    134,709.12x = 13,808,204,414.35
  5. Step 5: Solve for x
    x = 13,808,204,414.35/134,709.12
  6. Step 6: Final answer
    x = 102,503.86

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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.