Home / 107,629.15-161,111.41-70,108.42

Finding the Fourth Proportional to 107,629.15, 161,111.41 and 70,108.42

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Solution

The fourth proportional to 107,629.15, 161,111.41 and 70,108.42 is: 104,946.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,629.15 : 161,111.41 = 70,108.42 : x
  2. Step 2: Convert to fraction form
    107,629.15/161,111.41 = 70,108.42/x
  3. Step 3: Cross multiply
    107,629.15x = 161,111.41 × 70,108.42
  4. Step 4: Simplify right side
    107,629.15x = 11,295,266,399.07
  5. Step 5: Solve for x
    x = 11,295,266,399.07/107,629.15
  6. Step 6: Final answer
    x = 104,946.16

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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.