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Finding the Fourth Proportional to 143,376.66, 197,859.33 and 79,714.44

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Solution

The fourth proportional to 143,376.66, 197,859.33 and 79,714.44 is: 110,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,376.66 : 197,859.33 = 79,714.44 : x
  2. Step 2: Convert to fraction form
    143,376.66/197,859.33 = 79,714.44/x
  3. Step 3: Cross multiply
    143,376.66x = 197,859.33 × 79,714.44
  4. Step 4: Simplify right side
    143,376.66x = 15,772,245,689.73
  5. Step 5: Solve for x
    x = 15,772,245,689.73/143,376.66
  6. Step 6: Final answer
    x = 110,005.67

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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.