Home / 106,617.36-159,958-31,740.12

Finding the Fourth Proportional to 106,617.36, 159,958 and 31,740.12

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Solution

The fourth proportional to 106,617.36, 159,958 and 31,740.12 is: 47,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,617.36 : 159,958 = 31,740.12 : x
  2. Step 2: Convert to fraction form
    106,617.36/159,958 = 31,740.12/x
  3. Step 3: Cross multiply
    106,617.36x = 159,958 × 31,740.12
  4. Step 4: Simplify right side
    106,617.36x = 5,077,086,114.96
  5. Step 5: Solve for x
    x = 5,077,086,114.96/106,617.36
  6. Step 6: Final answer
    x = 47,619.69

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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.