Home / 186,846.78-257,856.30-106,288.50

Finding the Fourth Proportional to 186,846.78, 257,856.30 and 106,288.50

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Solution

The fourth proportional to 186,846.78, 257,856.30 and 106,288.50 is: 146,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,846.78 : 257,856.30 = 106,288.50 : x
  2. Step 2: Convert to fraction form
    186,846.78/257,856.30 = 106,288.50/x
  3. Step 3: Cross multiply
    186,846.78x = 257,856.30 × 106,288.50
  4. Step 4: Simplify right side
    186,846.78x = 27,407,159,342.55
  5. Step 5: Solve for x
    x = 27,407,159,342.55/186,846.78
  6. Step 6: Final answer
    x = 146,682.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.