Home / 143,431.72-197,920.58-79,759.24

Finding the Fourth Proportional to 143,431.72, 197,920.58 and 79,759.24

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Solution

The fourth proportional to 143,431.72, 197,920.58 and 79,759.24 is: 110,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,431.72 : 197,920.58 = 79,759.24 : x
  2. Step 2: Convert to fraction form
    143,431.72/197,920.58 = 79,759.24/x
  3. Step 3: Cross multiply
    143,431.72x = 197,920.58 × 79,759.24
  4. Step 4: Simplify right side
    143,431.72x = 15,785,995,041.16
  5. Step 5: Solve for x
    x = 15,785,995,041.16/143,431.72
  6. Step 6: Final answer
    x = 110,059.30

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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.