Home / 186,591.15-279,720.97-72,712.60

Finding the Fourth Proportional to 186,591.15, 279,720.97 and 72,712.60

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Solution

The fourth proportional to 186,591.15, 279,720.97 and 72,712.60 is: 109,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,591.15 : 279,720.97 = 72,712.60 : x
  2. Step 2: Convert to fraction form
    186,591.15/279,720.97 = 72,712.60/x
  3. Step 3: Cross multiply
    186,591.15x = 279,720.97 × 72,712.60
  4. Step 4: Simplify right side
    186,591.15x = 20,339,239,003.22
  5. Step 5: Solve for x
    x = 20,339,239,003.22/186,591.15
  6. Step 6: Final answer
    x = 109,004.31

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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.