Home / 143,126.28-197,516.52-79,464.24

Finding the Fourth Proportional to 143,126.28, 197,516.52 and 79,464.24

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Solution

The fourth proportional to 143,126.28, 197,516.52 and 79,464.24 is: 109,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,126.28 : 197,516.52 = 79,464.24 : x
  2. Step 2: Convert to fraction form
    143,126.28/197,516.52 = 79,464.24/x
  3. Step 3: Cross multiply
    143,126.28x = 197,516.52 × 79,464.24
  4. Step 4: Simplify right side
    143,126.28x = 15,695,500,149.24
  5. Step 5: Solve for x
    x = 15,695,500,149.24/143,126.28
  6. Step 6: Final answer
    x = 109,661.90

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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.