Home / 186,090.75-278,913.78-67,623.39

Finding the Fourth Proportional to 186,090.75, 278,913.78 and 67,623.39

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Solution

The fourth proportional to 186,090.75, 278,913.78 and 67,623.39 is: 101,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,090.75 : 278,913.78 = 67,623.39 : x
  2. Step 2: Convert to fraction form
    186,090.75/278,913.78 = 67,623.39/x
  3. Step 3: Cross multiply
    186,090.75x = 278,913.78 × 67,623.39
  4. Step 4: Simplify right side
    186,090.75x = 18,861,095,321.31
  5. Step 5: Solve for x
    x = 18,861,095,321.31/186,090.75
  6. Step 6: Final answer
    x = 101,354.29

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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.