Home / 102,998.13-154,458.31-47,555.25

Finding the Fourth Proportional to 102,998.13, 154,458.31 and 47,555.25

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Solution

The fourth proportional to 102,998.13, 154,458.31 and 47,555.25 is: 71,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,998.13 : 154,458.31 = 47,555.25 : x
  2. Step 2: Convert to fraction form
    102,998.13/154,458.31 = 47,555.25/x
  3. Step 3: Cross multiply
    102,998.13x = 154,458.31 × 47,555.25
  4. Step 4: Simplify right side
    102,998.13x = 7,345,303,546.63
  5. Step 5: Solve for x
    x = 7,345,303,546.63/102,998.13
  6. Step 6: Final answer
    x = 71,314.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.