Home / 129,089.90-193,469.91-104,141.71

Finding the Fourth Proportional to 129,089.90, 193,469.91 and 104,141.71

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Solution

The fourth proportional to 129,089.90, 193,469.91 and 104,141.71 is: 156,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,089.90 : 193,469.91 = 104,141.71 : x
  2. Step 2: Convert to fraction form
    129,089.90/193,469.91 = 104,141.71/x
  3. Step 3: Cross multiply
    129,089.90x = 193,469.91 × 104,141.71
  4. Step 4: Simplify right side
    129,089.90x = 20,148,286,293.60
  5. Step 5: Solve for x
    x = 20,148,286,293.60/129,089.90
  6. Step 6: Final answer
    x = 156,079.49

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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.