Home / 185,966.28-278,939.43-109,072.08

Finding the Fourth Proportional to 185,966.28, 278,939.43 and 109,072.08

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Solution

The fourth proportional to 185,966.28, 278,939.43 and 109,072.08 is: 163,602.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,966.28 : 278,939.43 = 109,072.08 : x
  2. Step 2: Convert to fraction form
    185,966.28/278,939.43 = 109,072.08/x
  3. Step 3: Cross multiply
    185,966.28x = 278,939.43 × 109,072.08
  4. Step 4: Simplify right side
    185,966.28x = 30,424,503,824.11
  5. Step 5: Solve for x
    x = 30,424,503,824.11/185,966.28
  6. Step 6: Final answer
    x = 163,602.26

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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.