Home / 189,899.60-261,979.08-114,404.72

Finding the Fourth Proportional to 189,899.60, 261,979.08 and 114,404.72

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Solution

The fourth proportional to 189,899.60, 261,979.08 and 114,404.72 is: 157,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,899.60 : 261,979.08 = 114,404.72 : x
  2. Step 2: Convert to fraction form
    189,899.60/261,979.08 = 114,404.72/x
  3. Step 3: Cross multiply
    189,899.60x = 261,979.08 × 114,404.72
  4. Step 4: Simplify right side
    189,899.60x = 29,971,643,293.26
  5. Step 5: Solve for x
    x = 29,971,643,293.26/189,899.60
  6. Step 6: Final answer
    x = 157,828.89

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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.