Home / 100,976.61-151,392-30,817.65

Finding the Fourth Proportional to 100,976.61, 151,392 and 30,817.65

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Solution

The fourth proportional to 100,976.61, 151,392 and 30,817.65 is: 46,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,976.61 : 151,392 = 30,817.65 : x
  2. Step 2: Convert to fraction form
    100,976.61/151,392 = 30,817.65/x
  3. Step 3: Cross multiply
    100,976.61x = 151,392 × 30,817.65
  4. Step 4: Simplify right side
    100,976.61x = 4,665,545,668.80
  5. Step 5: Solve for x
    x = 4,665,545,668.80/100,976.61
  6. Step 6: Final answer
    x = 46,204.22

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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.