Home / 209,619.48-289,265.28-114,126

Finding the Fourth Proportional to 209,619.48, 289,265.28 and 114,126

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Solution

The fourth proportional to 209,619.48, 289,265.28 and 114,126 is: 157,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,619.48 : 289,265.28 = 114,126 : x
  2. Step 2: Convert to fraction form
    209,619.48/289,265.28 = 114,126/x
  3. Step 3: Cross multiply
    209,619.48x = 289,265.28 × 114,126
  4. Step 4: Simplify right side
    209,619.48x = 33,012,689,345.28
  5. Step 5: Solve for x
    x = 33,012,689,345.28/209,619.48
  6. Step 6: Final answer
    x = 157,488.65

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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.