Home / 135,149.04-186,491.40-74,709.96

Finding the Fourth Proportional to 135,149.04, 186,491.40 and 74,709.96

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Solution

The fourth proportional to 135,149.04, 186,491.40 and 74,709.96 is: 103,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,149.04 : 186,491.40 = 74,709.96 : x
  2. Step 2: Convert to fraction form
    135,149.04/186,491.40 = 74,709.96/x
  3. Step 3: Cross multiply
    135,149.04x = 186,491.40 × 74,709.96
  4. Step 4: Simplify right side
    135,149.04x = 13,932,765,034.34
  5. Step 5: Solve for x
    x = 13,932,765,034.34/135,149.04
  6. Step 6: Final answer
    x = 103,091.85

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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.