Home / 209,820.56-289,555.80-114,331.28

Finding the Fourth Proportional to 209,820.56, 289,555.80 and 114,331.28

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Solution

The fourth proportional to 209,820.56, 289,555.80 and 114,331.28 is: 157,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,820.56 : 289,555.80 = 114,331.28 : x
  2. Step 2: Convert to fraction form
    209,820.56/289,555.80 = 114,331.28/x
  3. Step 3: Cross multiply
    209,820.56x = 289,555.80 × 114,331.28
  4. Step 4: Simplify right side
    209,820.56x = 33,105,285,245.42
  5. Step 5: Solve for x
    x = 33,105,285,245.42/209,820.56
  6. Step 6: Final answer
    x = 157,779.03

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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.