Home / 209,463.57-289,064.90-113,975.51

Finding the Fourth Proportional to 209,463.57, 289,064.90 and 113,975.51

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Solution

The fourth proportional to 209,463.57, 289,064.90 and 113,975.51 is: 157,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,463.57 : 289,064.90 = 113,975.51 : x
  2. Step 2: Convert to fraction form
    209,463.57/289,064.90 = 113,975.51/x
  3. Step 3: Cross multiply
    209,463.57x = 289,064.90 × 113,975.51
  4. Step 4: Simplify right side
    209,463.57x = 32,946,318,240.21
  5. Step 5: Solve for x
    x = 32,946,318,240.21/209,463.57
  6. Step 6: Final answer
    x = 157,289.01

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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.