Home / 209,639.48-289,308.66-114,150.20

Finding the Fourth Proportional to 209,639.48, 289,308.66 and 114,150.20

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Solution

The fourth proportional to 209,639.48, 289,308.66 and 114,150.20 is: 157,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,639.48 : 289,308.66 = 114,150.20 : x
  2. Step 2: Convert to fraction form
    209,639.48/289,308.66 = 114,150.20/x
  3. Step 3: Cross multiply
    209,639.48x = 289,308.66 × 114,150.20
  4. Step 4: Simplify right side
    209,639.48x = 33,024,641,400.73
  5. Step 5: Solve for x
    x = 33,024,641,400.73/209,639.48
  6. Step 6: Final answer
    x = 157,530.64

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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.