Home / 103,657.32-155,504.22-68,625.64

Finding the Fourth Proportional to 103,657.32, 155,504.22 and 68,625.64

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Solution

The fourth proportional to 103,657.32, 155,504.22 and 68,625.64 is: 102,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,657.32 : 155,504.22 = 68,625.64 : x
  2. Step 2: Convert to fraction form
    103,657.32/155,504.22 = 68,625.64/x
  3. Step 3: Cross multiply
    103,657.32x = 155,504.22 × 68,625.64
  4. Step 4: Simplify right side
    103,657.32x = 10,671,576,620.20
  5. Step 5: Solve for x
    x = 10,671,576,620.20/103,657.32
  6. Step 6: Final answer
    x = 102,950.54

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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.