Home / 186,965.10-258,021.72-102,082.50

Finding the Fourth Proportional to 186,965.10, 258,021.72 and 102,082.50

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Solution

The fourth proportional to 186,965.10, 258,021.72 and 102,082.50 is: 140,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,965.10 : 258,021.72 = 102,082.50 : x
  2. Step 2: Convert to fraction form
    186,965.10/258,021.72 = 102,082.50/x
  3. Step 3: Cross multiply
    186,965.10x = 258,021.72 × 102,082.50
  4. Step 4: Simplify right side
    186,965.10x = 26,339,502,231.90
  5. Step 5: Solve for x
    x = 26,339,502,231.90/186,965.10
  6. Step 6: Final answer
    x = 140,879.25

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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.