Home / 149,183.10-223,774.65-86,111.10

Finding the Fourth Proportional to 149,183.10, 223,774.65 and 86,111.10

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Solution

The fourth proportional to 149,183.10, 223,774.65 and 86,111.10 is: 129,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,183.10 : 223,774.65 = 86,111.10 : x
  2. Step 2: Convert to fraction form
    149,183.10/223,774.65 = 86,111.10/x
  3. Step 3: Cross multiply
    149,183.10x = 223,774.65 × 86,111.10
  4. Step 4: Simplify right side
    149,183.10x = 19,269,481,263.62
  5. Step 5: Solve for x
    x = 19,269,481,263.62/149,183.10
  6. Step 6: Final answer
    x = 129,166.65

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1.5x scale

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.