Home / 209,578.10-289,217.81-114,085.51

Finding the Fourth Proportional to 209,578.10, 289,217.81 and 114,085.51

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Solution

The fourth proportional to 209,578.10, 289,217.81 and 114,085.51 is: 157,438.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,578.10 : 289,217.81 = 114,085.51 : x
  2. Step 2: Convert to fraction form
    209,578.10/289,217.81 = 114,085.51/x
  3. Step 3: Cross multiply
    209,578.10x = 289,217.81 × 114,085.51
  4. Step 4: Simplify right side
    209,578.10x = 32,995,559,338.42
  5. Step 5: Solve for x
    x = 32,995,559,338.42/209,578.10
  6. Step 6: Final answer
    x = 157,438.02

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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.