Home / 155,954.14-215,217.23-84,334.68

Finding the Fourth Proportional to 155,954.14, 215,217.23 and 84,334.68

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Solution

The fourth proportional to 155,954.14, 215,217.23 and 84,334.68 is: 116,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,954.14 : 215,217.23 = 84,334.68 : x
  2. Step 2: Convert to fraction form
    155,954.14/215,217.23 = 84,334.68/x
  3. Step 3: Cross multiply
    155,954.14x = 215,217.23 × 84,334.68
  4. Step 4: Simplify right side
    155,954.14x = 18,150,275,800.86
  5. Step 5: Solve for x
    x = 18,150,275,800.86/155,954.14
  6. Step 6: Final answer
    x = 116,382.14

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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.