Home / 209,622.48-289,278.58-114,128.34

Finding the Fourth Proportional to 209,622.48, 289,278.58 and 114,128.34

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Solution

The fourth proportional to 209,622.48, 289,278.58 and 114,128.34 is: 157,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,622.48 : 289,278.58 = 114,128.34 : x
  2. Step 2: Convert to fraction form
    209,622.48/289,278.58 = 114,128.34/x
  3. Step 3: Cross multiply
    209,622.48x = 289,278.58 × 114,128.34
  4. Step 4: Simplify right side
    209,622.48x = 33,014,884,132.96
  5. Step 5: Solve for x
    x = 33,014,884,132.96/209,622.48
  6. Step 6: Final answer
    x = 157,496.87

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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.