Home / 190,554.72-262,981.28-105,699.20

Finding the Fourth Proportional to 190,554.72, 262,981.28 and 105,699.20

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Solution

The fourth proportional to 190,554.72, 262,981.28 and 105,699.20 is: 145,873.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,554.72 : 262,981.28 = 105,699.20 : x
  2. Step 2: Convert to fraction form
    190,554.72/262,981.28 = 105,699.20/x
  3. Step 3: Cross multiply
    190,554.72x = 262,981.28 × 105,699.20
  4. Step 4: Simplify right side
    190,554.72x = 27,796,910,910.98
  5. Step 5: Solve for x
    x = 27,796,910,910.98/190,554.72
  6. Step 6: Final answer
    x = 145,873.64

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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.