Home / 106,012.32-158,979.60-31,113.24

Finding the Fourth Proportional to 106,012.32, 158,979.60 and 31,113.24

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Solution

The fourth proportional to 106,012.32, 158,979.60 and 31,113.24 is: 46,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,012.32 : 158,979.60 = 31,113.24 : x
  2. Step 2: Convert to fraction form
    106,012.32/158,979.60 = 31,113.24/x
  3. Step 3: Cross multiply
    106,012.32x = 158,979.60 × 31,113.24
  4. Step 4: Simplify right side
    106,012.32x = 4,946,370,449.90
  5. Step 5: Solve for x
    x = 4,946,370,449.90/106,012.32
  6. Step 6: Final answer
    x = 46,658.45

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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.