Home / 100,747.65-151,116.00-30,621.49

Finding the Fourth Proportional to 100,747.65, 151,116.00 and 30,621.49

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Solution

The fourth proportional to 100,747.65, 151,116.00 and 30,621.49 is: 45,930.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,747.65 : 151,116.00 = 30,621.49 : x
  2. Step 2: Convert to fraction form
    100,747.65/151,116.00 = 30,621.49/x
  3. Step 3: Cross multiply
    100,747.65x = 151,116.00 × 30,621.49
  4. Step 4: Simplify right side
    100,747.65x = 4,627,397,386.57
  5. Step 5: Solve for x
    x = 4,627,397,386.57/100,747.65
  6. Step 6: Final answer
    x = 45,930.58

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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.