Home / 209,856.09-289,601.45-114,362.80

Finding the Fourth Proportional to 209,856.09, 289,601.45 and 114,362.80

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Solution

The fourth proportional to 209,856.09, 289,601.45 and 114,362.80 is: 157,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,856.09 : 289,601.45 = 114,362.80 : x
  2. Step 2: Convert to fraction form
    209,856.09/289,601.45 = 114,362.80/x
  3. Step 3: Cross multiply
    209,856.09x = 289,601.45 × 114,362.80
  4. Step 4: Simplify right side
    209,856.09x = 33,119,632,706.06
  5. Step 5: Solve for x
    x = 33,119,632,706.06/209,856.09
  6. Step 6: Final answer
    x = 157,820.69

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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.