Home / 186,610.20-279,980.10-81,504.60

Finding the Fourth Proportional to 186,610.20, 279,980.10 and 81,504.60

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Solution

The fourth proportional to 186,610.20, 279,980.10 and 81,504.60 is: 122,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,610.20 : 279,980.10 = 81,504.60 : x
  2. Step 2: Convert to fraction form
    186,610.20/279,980.10 = 81,504.60/x
  3. Step 3: Cross multiply
    186,610.20x = 279,980.10 × 81,504.60
  4. Step 4: Simplify right side
    186,610.20x = 22,819,666,058.46
  5. Step 5: Solve for x
    x = 22,819,666,058.46/186,610.20
  6. Step 6: Final answer
    x = 122,285.20

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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.