Home / 143,577.78-198,084.18-143,356.34

Finding the Fourth Proportional to 143,577.78, 198,084.18 and 143,356.34

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Solution

The fourth proportional to 143,577.78, 198,084.18 and 143,356.34 is: 197,778.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,577.78 : 198,084.18 = 143,356.34 : x
  2. Step 2: Convert to fraction form
    143,577.78/198,084.18 = 143,356.34/x
  3. Step 3: Cross multiply
    143,577.78x = 198,084.18 × 143,356.34
  4. Step 4: Simplify right side
    143,577.78x = 28,396,623,056.70
  5. Step 5: Solve for x
    x = 28,396,623,056.70/143,577.78
  6. Step 6: Final answer
    x = 197,778.67

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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.