Home / 191,188.08-263,839.70-105,148.42

Finding the Fourth Proportional to 191,188.08, 263,839.70 and 105,148.42

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Solution

The fourth proportional to 191,188.08, 263,839.70 and 105,148.42 is: 145,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,188.08 : 263,839.70 = 105,148.42 : x
  2. Step 2: Convert to fraction form
    191,188.08/263,839.70 = 105,148.42/x
  3. Step 3: Cross multiply
    191,188.08x = 263,839.70 × 105,148.42
  4. Step 4: Simplify right side
    191,188.08x = 27,742,327,191.55
  5. Step 5: Solve for x
    x = 27,742,327,191.55/191,188.08
  6. Step 6: Final answer
    x = 145,104.90

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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.