Home / 143,190.07-197,598.85-79,527.31

Finding the Fourth Proportional to 143,190.07, 197,598.85 and 79,527.31

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Solution

The fourth proportional to 143,190.07, 197,598.85 and 79,527.31 is: 109,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,190.07 : 197,598.85 = 79,527.31 : x
  2. Step 2: Convert to fraction form
    143,190.07/197,598.85 = 79,527.31/x
  3. Step 3: Cross multiply
    143,190.07x = 197,598.85 × 79,527.31
  4. Step 4: Simplify right side
    143,190.07x = 15,714,504,999.59
  5. Step 5: Solve for x
    x = 15,714,504,999.59/143,190.07
  6. Step 6: Final answer
    x = 109,745.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.