Home / 186,829.72-280,236.74-86,955.56

Finding the Fourth Proportional to 186,829.72, 280,236.74 and 86,955.56

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Solution

The fourth proportional to 186,829.72, 280,236.74 and 86,955.56 is: 130,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,829.72 : 280,236.74 = 86,955.56 : x
  2. Step 2: Convert to fraction form
    186,829.72/280,236.74 = 86,955.56/x
  3. Step 3: Cross multiply
    186,829.72x = 280,236.74 × 86,955.56
  4. Step 4: Simplify right side
    186,829.72x = 24,368,142,659.27
  5. Step 5: Solve for x
    x = 24,368,142,659.27/186,829.72
  6. Step 6: Final answer
    x = 130,429.69

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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.