Home / 118,926.51-178,389.36-30,179.67

Finding the Fourth Proportional to 118,926.51, 178,389.36 and 30,179.67

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Solution

The fourth proportional to 118,926.51, 178,389.36 and 30,179.67 is: 45,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,926.51 : 178,389.36 = 30,179.67 : x
  2. Step 2: Convert to fraction form
    118,926.51/178,389.36 = 30,179.67/x
  3. Step 3: Cross multiply
    118,926.51x = 178,389.36 × 30,179.67
  4. Step 4: Simplify right side
    118,926.51x = 5,383,732,016.31
  5. Step 5: Solve for x
    x = 5,383,732,016.31/118,926.51
  6. Step 6: Final answer
    x = 45,269.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.