Home / 143,723.18-198,325.10-80,059.60

Finding the Fourth Proportional to 143,723.18, 198,325.10 and 80,059.60

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Solution

The fourth proportional to 143,723.18, 198,325.10 and 80,059.60 is: 110,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,723.18 : 198,325.10 = 80,059.60 : x
  2. Step 2: Convert to fraction form
    143,723.18/198,325.10 = 80,059.60/x
  3. Step 3: Cross multiply
    143,723.18x = 198,325.10 × 80,059.60
  4. Step 4: Simplify right side
    143,723.18x = 15,877,828,175.96
  5. Step 5: Solve for x
    x = 15,877,828,175.96/143,723.18
  6. Step 6: Final answer
    x = 110,475.07

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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.