Home / 103,183.56-142,394.88-57,871.44

Finding the Fourth Proportional to 103,183.56, 142,394.88 and 57,871.44

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Solution

The fourth proportional to 103,183.56, 142,394.88 and 57,871.44 is: 79,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,183.56 : 142,394.88 = 57,871.44 : x
  2. Step 2: Convert to fraction form
    103,183.56/142,394.88 = 57,871.44/x
  3. Step 3: Cross multiply
    103,183.56x = 142,394.88 × 57,871.44
  4. Step 4: Simplify right side
    103,183.56x = 8,240,596,754.23
  5. Step 5: Solve for x
    x = 8,240,596,754.23/103,183.56
  6. Step 6: Final answer
    x = 79,863.47

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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.