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Finding the Fourth Proportional to 186,410.70, 279,366.57 and 67,970.34

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Solution

The fourth proportional to 186,410.70, 279,366.57 and 67,970.34 is: 101,864.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,410.70 : 279,366.57 = 67,970.34 : x
  2. Step 2: Convert to fraction form
    186,410.70/279,366.57 = 67,970.34/x
  3. Step 3: Cross multiply
    186,410.70x = 279,366.57 × 67,970.34
  4. Step 4: Simplify right side
    186,410.70x = 18,988,640,747.53
  5. Step 5: Solve for x
    x = 18,988,640,747.53/186,410.70
  6. Step 6: Final answer
    x = 101,864.54

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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.