Home / 143,269.67-197,708.23-79,605.83

Finding the Fourth Proportional to 143,269.67, 197,708.23 and 79,605.83

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Solution

The fourth proportional to 143,269.67, 197,708.23 and 79,605.83 is: 109,853.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,269.67 : 197,708.23 = 79,605.83 : x
  2. Step 2: Convert to fraction form
    143,269.67/197,708.23 = 79,605.83/x
  3. Step 3: Cross multiply
    143,269.67x = 197,708.23 × 79,605.83
  4. Step 4: Simplify right side
    143,269.67x = 15,738,727,746.98
  5. Step 5: Solve for x
    x = 15,738,727,746.98/143,269.67
  6. Step 6: Final answer
    x = 109,853.87

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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.