Home / 124,791.77-172,293.11-111,339.70

Finding the Fourth Proportional to 124,791.77, 172,293.11 and 111,339.70

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Solution

The fourth proportional to 124,791.77, 172,293.11 and 111,339.70 is: 153,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,791.77 : 172,293.11 = 111,339.70 : x
  2. Step 2: Convert to fraction form
    124,791.77/172,293.11 = 111,339.70/x
  3. Step 3: Cross multiply
    124,791.77x = 172,293.11 × 111,339.70
  4. Step 4: Simplify right side
    124,791.77x = 19,183,062,609.56
  5. Step 5: Solve for x
    x = 19,183,062,609.56/124,791.77
  6. Step 6: Final answer
    x = 153,720.57

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1.5x scale

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.