Home / 118,023.13-162,872.81-64,309.60

Finding the Fourth Proportional to 118,023.13, 162,872.81 and 64,309.60

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Solution

The fourth proportional to 118,023.13, 162,872.81 and 64,309.60 is: 88,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,023.13 : 162,872.81 = 64,309.60 : x
  2. Step 2: Convert to fraction form
    118,023.13/162,872.81 = 64,309.60/x
  3. Step 3: Cross multiply
    118,023.13x = 162,872.81 × 64,309.60
  4. Step 4: Simplify right side
    118,023.13x = 10,474,285,261.98
  5. Step 5: Solve for x
    x = 10,474,285,261.98/118,023.13
  6. Step 6: Final answer
    x = 88,747.73

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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.