Home / 143,591.28-214,917.37-105,630.42

Finding the Fourth Proportional to 143,591.28, 214,917.37 and 105,630.42

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Solution

The fourth proportional to 143,591.28, 214,917.37 and 105,630.42 is: 158,100.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,591.28 : 214,917.37 = 105,630.42 : x
  2. Step 2: Convert to fraction form
    143,591.28/214,917.37 = 105,630.42/x
  3. Step 3: Cross multiply
    143,591.28x = 214,917.37 × 105,630.42
  4. Step 4: Simplify right side
    143,591.28x = 22,701,812,058.40
  5. Step 5: Solve for x
    x = 22,701,812,058.40/143,591.28
  6. Step 6: Final answer
    x = 158,100.21

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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.