Home / 143,435.63-197,948.19-79,772.06

Finding the Fourth Proportional to 143,435.63, 197,948.19 and 79,772.06

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Solution

The fourth proportional to 143,435.63, 197,948.19 and 79,772.06 is: 110,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,435.63 : 197,948.19 = 79,772.06 : x
  2. Step 2: Convert to fraction form
    143,435.63/197,948.19 = 79,772.06/x
  3. Step 3: Cross multiply
    143,435.63x = 197,948.19 × 79,772.06
  4. Step 4: Simplify right side
    143,435.63x = 15,790,735,234.87
  5. Step 5: Solve for x
    x = 15,790,735,234.87/143,435.63
  6. Step 6: Final answer
    x = 110,089.35

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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.