Home / 124,610.42-186,915.61-68,805.36

Finding the Fourth Proportional to 124,610.42, 186,915.61 and 68,805.36

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Solution

The fourth proportional to 124,610.42, 186,915.61 and 68,805.36 is: 103,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,610.42 : 186,915.61 = 68,805.36 : x
  2. Step 2: Convert to fraction form
    124,610.42/186,915.61 = 68,805.36/x
  3. Step 3: Cross multiply
    124,610.42x = 186,915.61 × 68,805.36
  4. Step 4: Simplify right side
    124,610.42x = 12,860,795,835.67
  5. Step 5: Solve for x
    x = 12,860,795,835.67/124,610.42
  6. Step 6: Final answer
    x = 103,208.03

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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.