Home / 151,954.11-209,698.94-83,972.67

Finding the Fourth Proportional to 151,954.11, 209,698.94 and 83,972.67

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Solution

The fourth proportional to 151,954.11, 209,698.94 and 83,972.67 is: 115,883.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,954.11 : 209,698.94 = 83,972.67 : x
  2. Step 2: Convert to fraction form
    151,954.11/209,698.94 = 83,972.67/x
  3. Step 3: Cross multiply
    151,954.11x = 209,698.94 × 83,972.67
  4. Step 4: Simplify right side
    151,954.11x = 17,608,979,311.53
  5. Step 5: Solve for x
    x = 17,608,979,311.53/151,954.11
  6. Step 6: Final answer
    x = 115,883.53

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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.