Home / 105,183.10-145,147.26-57,427.24

Finding the Fourth Proportional to 105,183.10, 145,147.26 and 57,427.24

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Solution

The fourth proportional to 105,183.10, 145,147.26 and 57,427.24 is: 79,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,183.10 : 145,147.26 = 57,427.24 : x
  2. Step 2: Convert to fraction form
    105,183.10/145,147.26 = 57,427.24/x
  3. Step 3: Cross multiply
    105,183.10x = 145,147.26 × 57,427.24
  4. Step 4: Simplify right side
    105,183.10x = 8,335,406,535.36
  5. Step 5: Solve for x
    x = 8,335,406,535.36/105,183.10
  6. Step 6: Final answer
    x = 79,246.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.