Home / 140,517.04-210,786.54-40,678.72

Finding the Fourth Proportional to 140,517.04, 210,786.54 and 40,678.72

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Solution

The fourth proportional to 140,517.04, 210,786.54 and 40,678.72 is: 61,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,517.04 : 210,786.54 = 40,678.72 : x
  2. Step 2: Convert to fraction form
    140,517.04/210,786.54 = 40,678.72/x
  3. Step 3: Cross multiply
    140,517.04x = 210,786.54 × 40,678.72
  4. Step 4: Simplify right side
    140,517.04x = 8,574,526,640.43
  5. Step 5: Solve for x
    x = 8,574,526,640.43/140,517.04
  6. Step 6: Final answer
    x = 61,021.26

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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.