Home / 104,211.14-143,758.50-65,906.16

Finding the Fourth Proportional to 104,211.14, 143,758.50 and 65,906.16

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Solution

The fourth proportional to 104,211.14, 143,758.50 and 65,906.16 is: 90,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,211.14 : 143,758.50 = 65,906.16 : x
  2. Step 2: Convert to fraction form
    104,211.14/143,758.50 = 65,906.16/x
  3. Step 3: Cross multiply
    104,211.14x = 143,758.50 × 65,906.16
  4. Step 4: Simplify right side
    104,211.14x = 9,474,570,702.36
  5. Step 5: Solve for x
    x = 9,474,570,702.36/104,211.14
  6. Step 6: Final answer
    x = 90,917.07

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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.