Home / 209,933.12-289,705.50-114,437.78

Finding the Fourth Proportional to 209,933.12, 289,705.50 and 114,437.78

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Solution

The fourth proportional to 209,933.12, 289,705.50 and 114,437.78 is: 157,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,933.12 : 289,705.50 = 114,437.78 : x
  2. Step 2: Convert to fraction form
    209,933.12/289,705.50 = 114,437.78/x
  3. Step 3: Cross multiply
    209,933.12x = 289,705.50 × 114,437.78
  4. Step 4: Simplify right side
    209,933.12x = 33,153,254,273.79
  5. Step 5: Solve for x
    x = 33,153,254,273.79/209,933.12
  6. Step 6: Final answer
    x = 157,922.93

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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.