Home / 191,189.47-263,835.89-105,148.36

Finding the Fourth Proportional to 191,189.47, 263,835.89 and 105,148.36

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Solution

The fourth proportional to 191,189.47, 263,835.89 and 105,148.36 is: 145,101.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,189.47 : 263,835.89 = 105,148.36 : x
  2. Step 2: Convert to fraction form
    191,189.47/263,835.89 = 105,148.36/x
  3. Step 3: Cross multiply
    191,189.47x = 263,835.89 × 105,148.36
  4. Step 4: Simplify right side
    191,189.47x = 27,741,911,539.36
  5. Step 5: Solve for x
    x = 27,741,911,539.36/191,189.47
  6. Step 6: Final answer
    x = 145,101.67

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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.