Home / 142,666.52-196,879.62-79,004.24

Finding the Fourth Proportional to 142,666.52, 196,879.62 and 79,004.24

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Solution

The fourth proportional to 142,666.52, 196,879.62 and 79,004.24 is: 109,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,666.52 : 196,879.62 = 79,004.24 : x
  2. Step 2: Convert to fraction form
    142,666.52/196,879.62 = 79,004.24/x
  3. Step 3: Cross multiply
    142,666.52x = 196,879.62 × 79,004.24
  4. Step 4: Simplify right side
    142,666.52x = 15,554,324,749.59
  5. Step 5: Solve for x
    x = 15,554,324,749.59/142,666.52
  6. Step 6: Final answer
    x = 109,025.75

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1.5x scale

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.