Home / 143,176.46-197,578.08-79,518.33

Finding the Fourth Proportional to 143,176.46, 197,578.08 and 79,518.33

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Solution

The fourth proportional to 143,176.46, 197,578.08 and 79,518.33 is: 109,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,176.46 : 197,578.08 = 79,518.33 : x
  2. Step 2: Convert to fraction form
    143,176.46/197,578.08 = 79,518.33/x
  3. Step 3: Cross multiply
    143,176.46x = 197,578.08 × 79,518.33
  4. Step 4: Simplify right side
    143,176.46x = 15,711,078,966.21
  5. Step 5: Solve for x
    x = 15,711,078,966.21/143,176.46
  6. Step 6: Final answer
    x = 109,732.28

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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.