Home / 107,868.65-161,745.96-47,871.06

Finding the Fourth Proportional to 107,868.65, 161,745.96 and 47,871.06

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Solution

The fourth proportional to 107,868.65, 161,745.96 and 47,871.06 is: 71,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,868.65 : 161,745.96 = 47,871.06 : x
  2. Step 2: Convert to fraction form
    107,868.65/161,745.96 = 47,871.06/x
  3. Step 3: Cross multiply
    107,868.65x = 161,745.96 × 47,871.06
  4. Step 4: Simplify right side
    107,868.65x = 7,742,950,555.92
  5. Step 5: Solve for x
    x = 7,742,950,555.92/107,868.65
  6. Step 6: Final answer
    x = 71,781.29

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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.