Home / 143,180.67-197,589.79-79,518.47

Finding the Fourth Proportional to 143,180.67, 197,589.79 and 79,518.47

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Solution

The fourth proportional to 143,180.67, 197,589.79 and 79,518.47 is: 109,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,180.67 : 197,589.79 = 79,518.47 : x
  2. Step 2: Convert to fraction form
    143,180.67/197,589.79 = 79,518.47/x
  3. Step 3: Cross multiply
    143,180.67x = 197,589.79 × 79,518.47
  4. Step 4: Simplify right side
    143,180.67x = 15,712,036,601.68
  5. Step 5: Solve for x
    x = 15,712,036,601.68/143,180.67
  6. Step 6: Final answer
    x = 109,735.74

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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.