Home / 213,151.10-294,131.45-117,644.81

Finding the Fourth Proportional to 213,151.10, 294,131.45 and 117,644.81

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Solution

The fourth proportional to 213,151.10, 294,131.45 and 117,644.81 is: 162,340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,151.10 : 294,131.45 = 117,644.81 : x
  2. Step 2: Convert to fraction form
    213,151.10/294,131.45 = 117,644.81/x
  3. Step 3: Cross multiply
    213,151.10x = 294,131.45 × 117,644.81
  4. Step 4: Simplify right side
    213,151.10x = 34,603,037,373.73
  5. Step 5: Solve for x
    x = 34,603,037,373.73/213,151.10
  6. Step 6: Final answer
    x = 162,340.42

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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.