Home / 68,743.10-103,114.56-18,823.58

Finding the Fourth Proportional to 68,743.10, 103,114.56 and 18,823.58

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Solution

The fourth proportional to 68,743.10, 103,114.56 and 18,823.58 is: 28,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,743.10 : 103,114.56 = 18,823.58 : x
  2. Step 2: Convert to fraction form
    68,743.10/103,114.56 = 18,823.58/x
  3. Step 3: Cross multiply
    68,743.10x = 103,114.56 × 18,823.58
  4. Step 4: Simplify right side
    68,743.10x = 1,940,985,169.32
  5. Step 5: Solve for x
    x = 1,940,985,169.32/68,743.10
  6. Step 6: Final answer
    x = 28,235.35

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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.