Home / 186,049.78-278,723.49-109,921.16

Finding the Fourth Proportional to 186,049.78, 278,723.49 and 109,921.16

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Solution

The fourth proportional to 186,049.78, 278,723.49 and 109,921.16 is: 164,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,049.78 : 278,723.49 = 109,921.16 : x
  2. Step 2: Convert to fraction form
    186,049.78/278,723.49 = 109,921.16/x
  3. Step 3: Cross multiply
    186,049.78x = 278,723.49 × 109,921.16
  4. Step 4: Simplify right side
    186,049.78x = 30,637,610,036.86
  5. Step 5: Solve for x
    x = 30,637,610,036.86/186,049.78
  6. Step 6: Final answer
    x = 164,674.26

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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.