Home / 133,097.10-199,702.35-69,965.70

Finding the Fourth Proportional to 133,097.10, 199,702.35 and 69,965.70

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Solution

The fourth proportional to 133,097.10, 199,702.35 and 69,965.70 is: 104,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,097.10 : 199,702.35 = 69,965.70 : x
  2. Step 2: Convert to fraction form
    133,097.10/199,702.35 = 69,965.70/x
  3. Step 3: Cross multiply
    133,097.10x = 199,702.35 × 69,965.70
  4. Step 4: Simplify right side
    133,097.10x = 13,972,314,709.40
  5. Step 5: Solve for x
    x = 13,972,314,709.40/133,097.10
  6. Step 6: Final answer
    x = 104,978.36

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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.