Home / 186,847.78-257,857.68-106,289.50

Finding the Fourth Proportional to 186,847.78, 257,857.68 and 106,289.50

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Solution

The fourth proportional to 186,847.78, 257,857.68 and 106,289.50 is: 146,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,847.78 : 257,857.68 = 106,289.50 : x
  2. Step 2: Convert to fraction form
    186,847.78/257,857.68 = 106,289.50/x
  3. Step 3: Cross multiply
    186,847.78x = 257,857.68 × 106,289.50
  4. Step 4: Simplify right side
    186,847.78x = 27,407,563,878.36
  5. Step 5: Solve for x
    x = 27,407,563,878.36/186,847.78
  6. Step 6: Final answer
    x = 146,683.91

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1.5x scale

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.