Home / 68,690.33-103,565.23-68,263.86

Finding the Fourth Proportional to 68,690.33, 103,565.23 and 68,263.86

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Solution

The fourth proportional to 68,690.33, 103,565.23 and 68,263.86 is: 102,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,690.33 : 103,565.23 = 68,263.86 : x
  2. Step 2: Convert to fraction form
    68,690.33/103,565.23 = 68,263.86/x
  3. Step 3: Cross multiply
    68,690.33x = 103,565.23 × 68,263.86
  4. Step 4: Simplify right side
    68,690.33x = 7,069,762,963.28
  5. Step 5: Solve for x
    x = 7,069,762,963.28/68,690.33
  6. Step 6: Final answer
    x = 102,922.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.