Home / 209,437.99-289,016.13-113,942.63

Finding the Fourth Proportional to 209,437.99, 289,016.13 and 113,942.63

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Solution

The fourth proportional to 209,437.99, 289,016.13 and 113,942.63 is: 157,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,437.99 : 289,016.13 = 113,942.63 : x
  2. Step 2: Convert to fraction form
    209,437.99/289,016.13 = 113,942.63/x
  3. Step 3: Cross multiply
    209,437.99x = 289,016.13 × 113,942.63
  4. Step 4: Simplify right side
    209,437.99x = 32,931,259,114.45
  5. Step 5: Solve for x
    x = 32,931,259,114.45/209,437.99
  6. Step 6: Final answer
    x = 157,236.32

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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.