Home / 201,442.10-278,004.57-120,867.62

Finding the Fourth Proportional to 201,442.10, 278,004.57 and 120,867.62

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Solution

The fourth proportional to 201,442.10, 278,004.57 and 120,867.62 is: 166,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,442.10 : 278,004.57 = 120,867.62 : x
  2. Step 2: Convert to fraction form
    201,442.10/278,004.57 = 120,867.62/x
  3. Step 3: Cross multiply
    201,442.10x = 278,004.57 × 120,867.62
  4. Step 4: Simplify right side
    201,442.10x = 33,601,750,725.02
  5. Step 5: Solve for x
    x = 33,601,750,725.02/201,442.10
  6. Step 6: Final answer
    x = 166,806.00

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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.