Home / 209,899.28-289,665.60-114,410.72

Finding the Fourth Proportional to 209,899.28, 289,665.60 and 114,410.72

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Solution

The fourth proportional to 209,899.28, 289,665.60 and 114,410.72 is: 157,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,899.28 : 289,665.60 = 114,410.72 : x
  2. Step 2: Convert to fraction form
    209,899.28/289,665.60 = 114,410.72/x
  3. Step 3: Cross multiply
    209,899.28x = 289,665.60 × 114,410.72
  4. Step 4: Simplify right side
    209,899.28x = 33,140,849,855.23
  5. Step 5: Solve for x
    x = 33,140,849,855.23/209,899.28
  6. Step 6: Final answer
    x = 157,889.30

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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.