Home / 189,808.22-261,975.39-157,946.06

Finding the Fourth Proportional to 189,808.22, 261,975.39 and 157,946.06

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Solution

The fourth proportional to 189,808.22, 261,975.39 and 157,946.06 is: 217,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,808.22 : 261,975.39 = 157,946.06 : x
  2. Step 2: Convert to fraction form
    189,808.22/261,975.39 = 157,946.06/x
  3. Step 3: Cross multiply
    189,808.22x = 261,975.39 × 157,946.06
  4. Step 4: Simplify right side
    189,808.22x = 41,377,980,667.46
  5. Step 5: Solve for x
    x = 41,377,980,667.46/189,808.22
  6. Step 6: Final answer
    x = 217,998.89

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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.