Home / 143,226.72-197,658.90-79,570.44

Finding the Fourth Proportional to 143,226.72, 197,658.90 and 79,570.44

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Solution

The fourth proportional to 143,226.72, 197,658.90 and 79,570.44 is: 109,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,226.72 : 197,658.90 = 79,570.44 : x
  2. Step 2: Convert to fraction form
    143,226.72/197,658.90 = 79,570.44/x
  3. Step 3: Cross multiply
    143,226.72x = 197,658.90 × 79,570.44
  4. Step 4: Simplify right side
    143,226.72x = 15,727,805,642.92
  5. Step 5: Solve for x
    x = 15,727,805,642.92/143,226.72
  6. Step 6: Final answer
    x = 109,810.56

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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.