Home / 209,488.10-289,091.14-113,993.15

Finding the Fourth Proportional to 209,488.10, 289,091.14 and 113,993.15

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Solution

The fourth proportional to 209,488.10, 289,091.14 and 113,993.15 is: 157,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,488.10 : 289,091.14 = 113,993.15 : x
  2. Step 2: Convert to fraction form
    209,488.10/289,091.14 = 113,993.15/x
  3. Step 3: Cross multiply
    209,488.10x = 289,091.14 × 113,993.15
  4. Step 4: Simplify right side
    209,488.10x = 32,954,408,240.24
  5. Step 5: Solve for x
    x = 32,954,408,240.24/209,488.10
  6. Step 6: Final answer
    x = 157,309.22

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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.