Home / 186,153.49-279,137.98-66,192.45

Finding the Fourth Proportional to 186,153.49, 279,137.98 and 66,192.45

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Solution

The fourth proportional to 186,153.49, 279,137.98 and 66,192.45 is: 99,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,153.49 : 279,137.98 = 66,192.45 : x
  2. Step 2: Convert to fraction form
    186,153.49/279,137.98 = 66,192.45/x
  3. Step 3: Cross multiply
    186,153.49x = 279,137.98 × 66,192.45
  4. Step 4: Simplify right side
    186,153.49x = 18,476,826,784.25
  5. Step 5: Solve for x
    x = 18,476,826,784.25/186,153.49
  6. Step 6: Final answer
    x = 99,255.87

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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.