Home / 143,052.46-197,392.20-85,678.34

Finding the Fourth Proportional to 143,052.46, 197,392.20 and 85,678.34

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Solution

The fourth proportional to 143,052.46, 197,392.20 and 85,678.34 is: 118,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,052.46 : 197,392.20 = 85,678.34 : x
  2. Step 2: Convert to fraction form
    143,052.46/197,392.20 = 85,678.34/x
  3. Step 3: Cross multiply
    143,052.46x = 197,392.20 × 85,678.34
  4. Step 4: Simplify right side
    143,052.46x = 16,912,236,024.95
  5. Step 5: Solve for x
    x = 16,912,236,024.95/143,052.46
  6. Step 6: Final answer
    x = 118,224.02

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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.