Home / 135,096.96-186,421.92-74,667.60

Finding the Fourth Proportional to 135,096.96, 186,421.92 and 74,667.60

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Solution

The fourth proportional to 135,096.96, 186,421.92 and 74,667.60 is: 103,034.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,096.96 : 186,421.92 = 74,667.60 : x
  2. Step 2: Convert to fraction form
    135,096.96/186,421.92 = 74,667.60/x
  3. Step 3: Cross multiply
    135,096.96x = 186,421.92 × 74,667.60
  4. Step 4: Simplify right side
    135,096.96x = 13,919,677,353.79
  5. Step 5: Solve for x
    x = 13,919,677,353.79/135,096.96
  6. Step 6: Final answer
    x = 103,034.72

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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.