Home / 143,317.37-197,776.54-79,653.80

Finding the Fourth Proportional to 143,317.37, 197,776.54 and 79,653.80

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Solution

The fourth proportional to 143,317.37, 197,776.54 and 79,653.80 is: 109,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,317.37 : 197,776.54 = 79,653.80 : x
  2. Step 2: Convert to fraction form
    143,317.37/197,776.54 = 79,653.80/x
  3. Step 3: Cross multiply
    143,317.37x = 197,776.54 × 79,653.80
  4. Step 4: Simplify right side
    143,317.37x = 15,753,652,961.85
  5. Step 5: Solve for x
    x = 15,753,652,961.85/143,317.37
  6. Step 6: Final answer
    x = 109,921.45

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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.