Home / 106,486.85-146,999.09-68,779.49

Finding the Fourth Proportional to 106,486.85, 146,999.09 and 68,779.49

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Solution

The fourth proportional to 106,486.85, 146,999.09 and 68,779.49 is: 94,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,486.85 : 146,999.09 = 68,779.49 : x
  2. Step 2: Convert to fraction form
    106,486.85/146,999.09 = 68,779.49/x
  3. Step 3: Cross multiply
    106,486.85x = 146,999.09 × 68,779.49
  4. Step 4: Simplify right side
    106,486.85x = 10,110,522,096.77
  5. Step 5: Solve for x
    x = 10,110,522,096.77/106,486.85
  6. Step 6: Final answer
    x = 94,946.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.