Home / 143,737.48-198,363.84-80,075.28

Finding the Fourth Proportional to 143,737.48, 198,363.84 and 80,075.28

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Solution

The fourth proportional to 143,737.48, 198,363.84 and 80,075.28 is: 110,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,737.48 : 198,363.84 = 80,075.28 : x
  2. Step 2: Convert to fraction form
    143,737.48/198,363.84 = 80,075.28/x
  3. Step 3: Cross multiply
    143,737.48x = 198,363.84 × 80,075.28
  4. Step 4: Simplify right side
    143,737.48x = 15,884,040,029.88
  5. Step 5: Solve for x
    x = 15,884,040,029.88/143,737.48
  6. Step 6: Final answer
    x = 110,507.29

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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.