Home / 201,659.28-278,284.08-109,775.52

Finding the Fourth Proportional to 201,659.28, 278,284.08 and 109,775.52

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Solution

The fourth proportional to 201,659.28, 278,284.08 and 109,775.52 is: 151,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,659.28 : 278,284.08 = 109,775.52 : x
  2. Step 2: Convert to fraction form
    201,659.28/278,284.08 = 109,775.52/x
  3. Step 3: Cross multiply
    201,659.28x = 278,284.08 × 109,775.52
  4. Step 4: Simplify right side
    201,659.28x = 30,548,779,589.72
  5. Step 5: Solve for x
    x = 30,548,779,589.72/201,659.28
  6. Step 6: Final answer
    x = 151,487.10

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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.