Home / 201,926.15-278,659.98-111,285.37

Finding the Fourth Proportional to 201,926.15, 278,659.98 and 111,285.37

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Solution

The fourth proportional to 201,926.15, 278,659.98 and 111,285.37 is: 153,574.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,926.15 : 278,659.98 = 111,285.37 : x
  2. Step 2: Convert to fraction form
    201,926.15/278,659.98 = 111,285.37/x
  3. Step 3: Cross multiply
    201,926.15x = 278,659.98 × 111,285.37
  4. Step 4: Simplify right side
    201,926.15x = 31,010,779,326.82
  5. Step 5: Solve for x
    x = 31,010,779,326.82/201,926.15
  6. Step 6: Final answer
    x = 153,574.86

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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.