Home / 140,005.97-210,076.53-68,890.04

Finding the Fourth Proportional to 140,005.97, 210,076.53 and 68,890.04

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Solution

The fourth proportional to 140,005.97, 210,076.53 and 68,890.04 is: 103,368.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.97 : 210,076.53 = 68,890.04 : x
  2. Step 2: Convert to fraction form
    140,005.97/210,076.53 = 68,890.04/x
  3. Step 3: Cross multiply
    140,005.97x = 210,076.53 × 68,890.04
  4. Step 4: Simplify right side
    140,005.97x = 14,472,180,554.76
  5. Step 5: Solve for x
    x = 14,472,180,554.76/140,005.97
  6. Step 6: Final answer
    x = 103,368.31

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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.