Home / 209,516.75-289,127.57-114,021.40

Finding the Fourth Proportional to 209,516.75, 289,127.57 and 114,021.40

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Solution

The fourth proportional to 209,516.75, 289,127.57 and 114,021.40 is: 157,346.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516.75 : 289,127.57 = 114,021.40 : x
  2. Step 2: Convert to fraction form
    209,516.75/289,127.57 = 114,021.40/x
  3. Step 3: Cross multiply
    209,516.75x = 289,127.57 × 114,021.40
  4. Step 4: Simplify right side
    209,516.75x = 32,966,730,310.00
  5. Step 5: Solve for x
    x = 32,966,730,310.00/209,516.75
  6. Step 6: Final answer
    x = 157,346.51

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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.