Home / 186,904.28-280,360.41-66,969.07

Finding the Fourth Proportional to 186,904.28, 280,360.41 and 66,969.07

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Solution

The fourth proportional to 186,904.28, 280,360.41 and 66,969.07 is: 100,455.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,904.28 : 280,360.41 = 66,969.07 : x
  2. Step 2: Convert to fraction form
    186,904.28/280,360.41 = 66,969.07/x
  3. Step 3: Cross multiply
    186,904.28x = 280,360.41 × 66,969.07
  4. Step 4: Simplify right side
    186,904.28x = 18,775,474,970.48
  5. Step 5: Solve for x
    x = 18,775,474,970.48/186,904.28
  6. Step 6: Final answer
    x = 100,455.03

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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.