Home / 105,454.10-158,181.76-43,124.60

Finding the Fourth Proportional to 105,454.10, 158,181.76 and 43,124.60

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Solution

The fourth proportional to 105,454.10, 158,181.76 and 43,124.60 is: 64,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.10 : 158,181.76 = 43,124.60 : x
  2. Step 2: Convert to fraction form
    105,454.10/158,181.76 = 43,124.60/x
  3. Step 3: Cross multiply
    105,454.10x = 158,181.76 × 43,124.60
  4. Step 4: Simplify right side
    105,454.10x = 6,821,525,576.66
  5. Step 5: Solve for x
    x = 6,821,525,576.66/105,454.10
  6. Step 6: Final answer
    x = 64,687.15

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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.