Home / 151,981.97-209,735.46-83,997.45

Finding the Fourth Proportional to 151,981.97, 209,735.46 and 83,997.45

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Solution

The fourth proportional to 151,981.97, 209,735.46 and 83,997.45 is: 115,916.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,981.97 : 209,735.46 = 83,997.45 : x
  2. Step 2: Convert to fraction form
    151,981.97/209,735.46 = 83,997.45/x
  3. Step 3: Cross multiply
    151,981.97x = 209,735.46 × 83,997.45
  4. Step 4: Simplify right side
    151,981.97x = 17,617,243,814.58
  5. Step 5: Solve for x
    x = 17,617,243,814.58/151,981.97
  6. Step 6: Final answer
    x = 115,916.67

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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.