Home / 169,435.27-254,145.21-74,640.12

Finding the Fourth Proportional to 169,435.27, 254,145.21 and 74,640.12

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Solution

The fourth proportional to 169,435.27, 254,145.21 and 74,640.12 is: 111,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,435.27 : 254,145.21 = 74,640.12 : x
  2. Step 2: Convert to fraction form
    169,435.27/254,145.21 = 74,640.12/x
  3. Step 3: Cross multiply
    169,435.27x = 254,145.21 × 74,640.12
  4. Step 4: Simplify right side
    169,435.27x = 18,969,428,971.83
  5. Step 5: Solve for x
    x = 18,969,428,971.83/169,435.27
  6. Step 6: Final answer
    x = 111,956.79

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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.