Home / 143,208.84-197,628.12-79,552.56

Finding the Fourth Proportional to 143,208.84, 197,628.12 and 79,552.56

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Solution

The fourth proportional to 143,208.84, 197,628.12 and 79,552.56 is: 109,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,208.84 : 197,628.12 = 79,552.56 : x
  2. Step 2: Convert to fraction form
    143,208.84/197,628.12 = 79,552.56/x
  3. Step 3: Cross multiply
    143,208.84x = 197,628.12 × 79,552.56
  4. Step 4: Simplify right side
    143,208.84x = 15,721,822,873.99
  5. Step 5: Solve for x
    x = 15,721,822,873.99/143,208.84
  6. Step 6: Final answer
    x = 109,782.49

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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.