Home / 98,036.99-146,983.80-31,439.21

Finding the Fourth Proportional to 98,036.99, 146,983.80 and 31,439.21

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Solution

The fourth proportional to 98,036.99, 146,983.80 and 31,439.21 is: 47,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,036.99 : 146,983.80 = 31,439.21 : x
  2. Step 2: Convert to fraction form
    98,036.99/146,983.80 = 31,439.21/x
  3. Step 3: Cross multiply
    98,036.99x = 146,983.80 × 31,439.21
  4. Step 4: Simplify right side
    98,036.99x = 4,621,054,554.80
  5. Step 5: Solve for x
    x = 4,621,054,554.80/98,036.99
  6. Step 6: Final answer
    x = 47,135.83

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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.