Home / 190,356.17-285,570.29-76,512.85

Finding the Fourth Proportional to 190,356.17, 285,570.29 and 76,512.85

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Solution

The fourth proportional to 190,356.17, 285,570.29 and 76,512.85 is: 114,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356.17 : 285,570.29 = 76,512.85 : x
  2. Step 2: Convert to fraction form
    190,356.17/285,570.29 = 76,512.85/x
  3. Step 3: Cross multiply
    190,356.17x = 285,570.29 × 76,512.85
  4. Step 4: Simplify right side
    190,356.17x = 21,849,796,240.58
  5. Step 5: Solve for x
    x = 21,849,796,240.58/190,356.17
  6. Step 6: Final answer
    x = 114,783.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.