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Finding the Fourth Proportional to 118,005.67, 162,846.97 and 64,290.67

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Solution

The fourth proportional to 118,005.67, 162,846.97 and 64,290.67 is: 88,720.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,005.67 : 162,846.97 = 64,290.67 : x
  2. Step 2: Convert to fraction form
    118,005.67/162,846.97 = 64,290.67/x
  3. Step 3: Cross multiply
    118,005.67x = 162,846.97 × 64,290.67
  4. Step 4: Simplify right side
    118,005.67x = 10,469,540,808.77
  5. Step 5: Solve for x
    x = 10,469,540,808.77/118,005.67
  6. Step 6: Final answer
    x = 88,720.66

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1.5x scale

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.