Home / 147,786.65-221,711.10-47,939.06

Finding the Fourth Proportional to 147,786.65, 221,711.10 and 47,939.06

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Solution

The fourth proportional to 147,786.65, 221,711.10 and 47,939.06 is: 71,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,786.65 : 221,711.10 = 47,939.06 : x
  2. Step 2: Convert to fraction form
    147,786.65/221,711.10 = 47,939.06/x
  3. Step 3: Cross multiply
    147,786.65x = 221,711.10 × 47,939.06
  4. Step 4: Simplify right side
    147,786.65x = 10,628,620,617.01
  5. Step 5: Solve for x
    x = 10,628,620,617.01/147,786.65
  6. Step 6: Final answer
    x = 71,918.68

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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.