Home / 209,833.12-289,571.28-114,342.40

Finding the Fourth Proportional to 209,833.12, 289,571.28 and 114,342.40

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Solution

The fourth proportional to 209,833.12, 289,571.28 and 114,342.40 is: 157,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,833.12 : 289,571.28 = 114,342.40 : x
  2. Step 2: Convert to fraction form
    209,833.12/289,571.28 = 114,342.40/x
  3. Step 3: Cross multiply
    209,833.12x = 289,571.28 × 114,342.40
  4. Step 4: Simplify right side
    209,833.12x = 33,110,275,126.27
  5. Step 5: Solve for x
    x = 33,110,275,126.27/209,833.12
  6. Step 6: Final answer
    x = 157,793.37

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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.