Home / 103,185.08-154,777.64-82,539.80

Finding the Fourth Proportional to 103,185.08, 154,777.64 and 82,539.80

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Solution

The fourth proportional to 103,185.08, 154,777.64 and 82,539.80 is: 123,809.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,185.08 : 154,777.64 = 82,539.80 : x
  2. Step 2: Convert to fraction form
    103,185.08/154,777.64 = 82,539.80/x
  3. Step 3: Cross multiply
    103,185.08x = 154,777.64 × 82,539.80
  4. Step 4: Simplify right side
    103,185.08x = 12,775,315,450.07
  5. Step 5: Solve for x
    x = 12,775,315,450.07/103,185.08
  6. Step 6: Final answer
    x = 123,809.72

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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.