Home / 143,190.86-213,739.49-132,783.17

Finding the Fourth Proportional to 143,190.86, 213,739.49 and 132,783.17

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Solution

The fourth proportional to 143,190.86, 213,739.49 and 132,783.17 is: 198,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,190.86 : 213,739.49 = 132,783.17 : x
  2. Step 2: Convert to fraction form
    143,190.86/213,739.49 = 132,783.17/x
  3. Step 3: Cross multiply
    143,190.86x = 213,739.49 × 132,783.17
  4. Step 4: Simplify right side
    143,190.86x = 28,381,006,299.64
  5. Step 5: Solve for x
    x = 28,381,006,299.64/143,190.86
  6. Step 6: Final answer
    x = 198,204.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.