Home / 209,977.08-289,769.64-114,485.36

Finding the Fourth Proportional to 209,977.08, 289,769.64 and 114,485.36

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Solution

The fourth proportional to 209,977.08, 289,769.64 and 114,485.36 is: 157,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,977.08 : 289,769.64 = 114,485.36 : x
  2. Step 2: Convert to fraction form
    209,977.08/289,769.64 = 114,485.36/x
  3. Step 3: Cross multiply
    209,977.08x = 289,769.64 × 114,485.36
  4. Step 4: Simplify right side
    209,977.08x = 33,174,381,552.47
  5. Step 5: Solve for x
    x = 33,174,381,552.47/209,977.08
  6. Step 6: Final answer
    x = 157,990.49

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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.