Home / 100,721.16-151,091.63-36,696.74

Finding the Fourth Proportional to 100,721.16, 151,091.63 and 36,696.74

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Solution

The fourth proportional to 100,721.16, 151,091.63 and 36,696.74 is: 55,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,721.16 : 151,091.63 = 36,696.74 : x
  2. Step 2: Convert to fraction form
    100,721.16/151,091.63 = 36,696.74/x
  3. Step 3: Cross multiply
    100,721.16x = 151,091.63 × 36,696.74
  4. Step 4: Simplify right side
    100,721.16x = 5,544,569,460.96
  5. Step 5: Solve for x
    x = 5,544,569,460.96/100,721.16
  6. Step 6: Final answer
    x = 55,048.71

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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.