Home / 186,905.57-280,362.33-66,970.35

Finding the Fourth Proportional to 186,905.57, 280,362.33 and 66,970.35

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Solution

The fourth proportional to 186,905.57, 280,362.33 and 66,970.35 is: 100,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,905.57 : 280,362.33 = 66,970.35 : x
  2. Step 2: Convert to fraction form
    186,905.57/280,362.33 = 66,970.35/x
  3. Step 3: Cross multiply
    186,905.57x = 280,362.33 × 66,970.35
  4. Step 4: Simplify right side
    186,905.57x = 18,775,963,366.92
  5. Step 5: Solve for x
    x = 18,775,963,366.92/186,905.57
  6. Step 6: Final answer
    x = 100,456.95

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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.