Home / 210,105.90-289,945.08-114,611.76

Finding the Fourth Proportional to 210,105.90, 289,945.08 and 114,611.76

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Solution

The fourth proportional to 210,105.90, 289,945.08 and 114,611.76 is: 158,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,105.90 : 289,945.08 = 114,611.76 : x
  2. Step 2: Convert to fraction form
    210,105.90/289,945.08 = 114,611.76/x
  3. Step 3: Cross multiply
    210,105.90x = 289,945.08 × 114,611.76
  4. Step 4: Simplify right side
    210,105.90x = 33,231,115,922.14
  5. Step 5: Solve for x
    x = 33,231,115,922.14/210,105.90
  6. Step 6: Final answer
    x = 158,163.65

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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.