Home / 100,694.04-151,039.71-40,721.64

Finding the Fourth Proportional to 100,694.04, 151,039.71 and 40,721.64

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Solution

The fourth proportional to 100,694.04, 151,039.71 and 40,721.64 is: 61,081.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,694.04 : 151,039.71 = 40,721.64 : x
  2. Step 2: Convert to fraction form
    100,694.04/151,039.71 = 40,721.64/x
  3. Step 3: Cross multiply
    100,694.04x = 151,039.71 × 40,721.64
  4. Step 4: Simplify right side
    100,694.04x = 6,150,584,696.32
  5. Step 5: Solve for x
    x = 6,150,584,696.32/100,694.04
  6. Step 6: Final answer
    x = 61,081.91

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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.