Home / 105,984.30-158,993.77-31,106.89

Finding the Fourth Proportional to 105,984.30, 158,993.77 and 31,106.89

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Solution

The fourth proportional to 105,984.30, 158,993.77 and 31,106.89 is: 46,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,984.30 : 158,993.77 = 31,106.89 : x
  2. Step 2: Convert to fraction form
    105,984.30/158,993.77 = 31,106.89/x
  3. Step 3: Cross multiply
    105,984.30x = 158,993.77 × 31,106.89
  4. Step 4: Simplify right side
    105,984.30x = 4,945,801,714.08
  5. Step 5: Solve for x
    x = 4,945,801,714.08/105,984.30
  6. Step 6: Final answer
    x = 46,665.42

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1.5x scale

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.