Home / 143,156.80-197,577.93-103,003.48

Finding the Fourth Proportional to 143,156.80, 197,577.93 and 103,003.48

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Solution

The fourth proportional to 143,156.80, 197,577.93 and 103,003.48 is: 142,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,156.80 : 197,577.93 = 103,003.48 : x
  2. Step 2: Convert to fraction form
    143,156.80/197,577.93 = 103,003.48/x
  3. Step 3: Cross multiply
    143,156.80x = 197,577.93 × 103,003.48
  4. Step 4: Simplify right side
    143,156.80x = 20,351,214,361.20
  5. Step 5: Solve for x
    x = 20,351,214,361.20/143,156.80
  6. Step 6: Final answer
    x = 142,160.31

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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.