Home / 209,821.56-289,557.18-114,332.28

Finding the Fourth Proportional to 209,821.56, 289,557.18 and 114,332.28

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Solution

The fourth proportional to 209,821.56, 289,557.18 and 114,332.28 is: 157,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,821.56 : 289,557.18 = 114,332.28 : x
  2. Step 2: Convert to fraction form
    209,821.56/289,557.18 = 114,332.28/x
  3. Step 3: Cross multiply
    209,821.56x = 289,557.18 × 114,332.28
  4. Step 4: Simplify right side
    209,821.56x = 33,105,732,579.77
  5. Step 5: Solve for x
    x = 33,105,732,579.77/209,821.56
  6. Step 6: Final answer
    x = 157,780.41

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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.