Home / 107,890.27-162,103.10-69,963.67

Finding the Fourth Proportional to 107,890.27, 162,103.10 and 69,963.67

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Solution

The fourth proportional to 107,890.27, 162,103.10 and 69,963.67 is: 105,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,890.27 : 162,103.10 = 69,963.67 : x
  2. Step 2: Convert to fraction form
    107,890.27/162,103.10 = 69,963.67/x
  3. Step 3: Cross multiply
    107,890.27x = 162,103.10 × 69,963.67
  4. Step 4: Simplify right side
    107,890.27x = 11,341,327,444.56
  5. Step 5: Solve for x
    x = 11,341,327,444.56/107,890.27
  6. Step 6: Final answer
    x = 105,119.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.