Home / 209,622.70-289,280.43-114,129.10

Finding the Fourth Proportional to 209,622.70, 289,280.43 and 114,129.10

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Solution

The fourth proportional to 209,622.70, 289,280.43 and 114,129.10 is: 157,498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,622.70 : 289,280.43 = 114,129.10 : x
  2. Step 2: Convert to fraction form
    209,622.70/289,280.43 = 114,129.10/x
  3. Step 3: Cross multiply
    209,622.70x = 289,280.43 × 114,129.10
  4. Step 4: Simplify right side
    209,622.70x = 33,015,315,123.51
  5. Step 5: Solve for x
    x = 33,015,315,123.51/209,622.70
  6. Step 6: Final answer
    x = 157,498.76

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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.