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Finding the Fourth Proportional to 143,150.80, 214,726.20 and 100,941.70

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Solution

The fourth proportional to 143,150.80, 214,726.20 and 100,941.70 is: 151,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,150.80 : 214,726.20 = 100,941.70 : x
  2. Step 2: Convert to fraction form
    143,150.80/214,726.20 = 100,941.70/x
  3. Step 3: Cross multiply
    143,150.80x = 214,726.20 × 100,941.70
  4. Step 4: Simplify right side
    143,150.80x = 21,674,827,662.54
  5. Step 5: Solve for x
    x = 21,674,827,662.54/143,150.80
  6. Step 6: Final answer
    x = 151,412.55

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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.