Home / 112,524.59-155,210.78-72,174.44

Finding the Fourth Proportional to 112,524.59, 155,210.78 and 72,174.44

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Solution

The fourth proportional to 112,524.59, 155,210.78 and 72,174.44 is: 99,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,524.59 : 155,210.78 = 72,174.44 : x
  2. Step 2: Convert to fraction form
    112,524.59/155,210.78 = 72,174.44/x
  3. Step 3: Cross multiply
    112,524.59x = 155,210.78 × 72,174.44
  4. Step 4: Simplify right side
    112,524.59x = 11,202,251,696.93
  5. Step 5: Solve for x
    x = 11,202,251,696.93/112,524.59
  6. Step 6: Final answer
    x = 99,553.81

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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.