Home / 130,850.26-180,562.32-79,186.70

Finding the Fourth Proportional to 130,850.26, 180,562.32 and 79,186.70

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Solution

The fourth proportional to 130,850.26, 180,562.32 and 79,186.70 is: 109,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,850.26 : 180,562.32 = 79,186.70 : x
  2. Step 2: Convert to fraction form
    130,850.26/180,562.32 = 79,186.70/x
  3. Step 3: Cross multiply
    130,850.26x = 180,562.32 × 79,186.70
  4. Step 4: Simplify right side
    130,850.26x = 14,298,134,716.55
  5. Step 5: Solve for x
    x = 14,298,134,716.55/130,850.26
  6. Step 6: Final answer
    x = 109,270.97

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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.