Home / 129,806.76-193,564.35-125,181.21

Finding the Fourth Proportional to 129,806.76, 193,564.35 and 125,181.21

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Solution

The fourth proportional to 129,806.76, 193,564.35 and 125,181.21 is: 186,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,806.76 : 193,564.35 = 125,181.21 : x
  2. Step 2: Convert to fraction form
    129,806.76/193,564.35 = 125,181.21/x
  3. Step 3: Cross multiply
    129,806.76x = 193,564.35 × 125,181.21
  4. Step 4: Simplify right side
    129,806.76x = 24,230,619,545.86
  5. Step 5: Solve for x
    x = 24,230,619,545.86/129,806.76
  6. Step 6: Final answer
    x = 186,666.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.