Home / 191,117.44-263,720.64-114,639.67

Finding the Fourth Proportional to 191,117.44, 263,720.64 and 114,639.67

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Solution

The fourth proportional to 191,117.44, 263,720.64 and 114,639.67 is: 158,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,117.44 : 263,720.64 = 114,639.67 : x
  2. Step 2: Convert to fraction form
    191,117.44/263,720.64 = 114,639.67/x
  3. Step 3: Cross multiply
    191,117.44x = 263,720.64 × 114,639.67
  4. Step 4: Simplify right side
    191,117.44x = 30,232,847,141.79
  5. Step 5: Solve for x
    x = 30,232,847,141.79/191,117.44
  6. Step 6: Final answer
    x = 158,189.89

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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.