Home / 112,032.38-154,571.52-66,674

Finding the Fourth Proportional to 112,032.38, 154,571.52 and 66,674

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Solution

The fourth proportional to 112,032.38, 154,571.52 and 66,674 is: 91,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,032.38 : 154,571.52 = 66,674 : x
  2. Step 2: Convert to fraction form
    112,032.38/154,571.52 = 66,674/x
  3. Step 3: Cross multiply
    112,032.38x = 154,571.52 × 66,674
  4. Step 4: Simplify right side
    112,032.38x = 10,305,901,524.48
  5. Step 5: Solve for x
    x = 10,305,901,524.48/112,032.38
  6. Step 6: Final answer
    x = 91,990.38

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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.