Home / 205,427.70-308,195.55-65,186.10

Finding the Fourth Proportional to 205,427.70, 308,195.55 and 65,186.10

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Solution

The fourth proportional to 205,427.70, 308,195.55 and 65,186.10 is: 97,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,427.70 : 308,195.55 = 65,186.10 : x
  2. Step 2: Convert to fraction form
    205,427.70/308,195.55 = 65,186.10/x
  3. Step 3: Cross multiply
    205,427.70x = 308,195.55 × 65,186.10
  4. Step 4: Simplify right side
    205,427.70x = 20,090,065,941.86
  5. Step 5: Solve for x
    x = 20,090,065,941.86/205,427.70
  6. Step 6: Final answer
    x = 97,796.29

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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.