Home / 186,616.20-279,793.08-86,670.30

Finding the Fourth Proportional to 186,616.20, 279,793.08 and 86,670.30

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Solution

The fourth proportional to 186,616.20, 279,793.08 and 86,670.30 is: 129,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,616.20 : 279,793.08 = 86,670.30 : x
  2. Step 2: Convert to fraction form
    186,616.20/279,793.08 = 86,670.30/x
  3. Step 3: Cross multiply
    186,616.20x = 279,793.08 × 86,670.30
  4. Step 4: Simplify right side
    186,616.20x = 24,249,750,181.52
  5. Step 5: Solve for x
    x = 24,249,750,181.52/186,616.20
  6. Step 6: Final answer
    x = 129,944.51

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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.