Home / 201,914.59-278,644-111,273.81

Finding the Fourth Proportional to 201,914.59, 278,644 and 111,273.81

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Solution

The fourth proportional to 201,914.59, 278,644 and 111,273.81 is: 153,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,914.59 : 278,644 = 111,273.81 : x
  2. Step 2: Convert to fraction form
    201,914.59/278,644 = 111,273.81/x
  3. Step 3: Cross multiply
    201,914.59x = 278,644 × 111,273.81
  4. Step 4: Simplify right side
    201,914.59x = 31,005,779,513.64
  5. Step 5: Solve for x
    x = 31,005,779,513.64/201,914.59
  6. Step 6: Final answer
    x = 153,558.89

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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.