Home / 143,356.03-197,833.29-79,695.19

Finding the Fourth Proportional to 143,356.03, 197,833.29 and 79,695.19

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Solution

The fourth proportional to 143,356.03, 197,833.29 and 79,695.19 is: 109,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,356.03 : 197,833.29 = 79,695.19 : x
  2. Step 2: Convert to fraction form
    143,356.03/197,833.29 = 79,695.19/x
  3. Step 3: Cross multiply
    143,356.03x = 197,833.29 × 79,695.19
  4. Step 4: Simplify right side
    143,356.03x = 15,766,361,583.31
  5. Step 5: Solve for x
    x = 15,766,361,583.31/143,356.03
  6. Step 6: Final answer
    x = 109,980.46

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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.