Home / 105,905.63-158,880.33-31,028.22

Finding the Fourth Proportional to 105,905.63, 158,880.33 and 31,028.22

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Solution

The fourth proportional to 105,905.63, 158,880.33 and 31,028.22 is: 46,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,905.63 : 158,880.33 = 31,028.22 : x
  2. Step 2: Convert to fraction form
    105,905.63/158,880.33 = 31,028.22/x
  3. Step 3: Cross multiply
    105,905.63x = 158,880.33 × 31,028.22
  4. Step 4: Simplify right side
    105,905.63x = 4,929,773,832.91
  5. Step 5: Solve for x
    x = 4,929,773,832.91/105,905.63
  6. Step 6: Final answer
    x = 46,548.74

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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.