Home / 186,618.24-279,836.64-68,209.20

Finding the Fourth Proportional to 186,618.24, 279,836.64 and 68,209.20

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Solution

The fourth proportional to 186,618.24, 279,836.64 and 68,209.20 is: 102,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,618.24 : 279,836.64 = 68,209.20 : x
  2. Step 2: Convert to fraction form
    186,618.24/279,836.64 = 68,209.20/x
  3. Step 3: Cross multiply
    186,618.24x = 279,836.64 × 68,209.20
  4. Step 4: Simplify right side
    186,618.24x = 19,087,433,345.09
  5. Step 5: Solve for x
    x = 19,087,433,345.09/186,618.24
  6. Step 6: Final answer
    x = 102,280.64

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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.