Home / 155,934.66-215,189.96-84,314.73

Finding the Fourth Proportional to 155,934.66, 215,189.96 and 84,314.73

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Solution

The fourth proportional to 155,934.66, 215,189.96 and 84,314.73 is: 116,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,934.66 : 215,189.96 = 84,314.73 : x
  2. Step 2: Convert to fraction form
    155,934.66/215,189.96 = 84,314.73/x
  3. Step 3: Cross multiply
    155,934.66x = 215,189.96 × 84,314.73
  4. Step 4: Simplify right side
    155,934.66x = 18,143,682,954.54
  5. Step 5: Solve for x
    x = 18,143,682,954.54/155,934.66
  6. Step 6: Final answer
    x = 116,354.39

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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.