Home / 140,381.90-193,740.38-76,729.26

Finding the Fourth Proportional to 140,381.90, 193,740.38 and 76,729.26

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Solution

The fourth proportional to 140,381.90, 193,740.38 and 76,729.26 is: 105,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,381.90 : 193,740.38 = 76,729.26 : x
  2. Step 2: Convert to fraction form
    140,381.90/193,740.38 = 76,729.26/x
  3. Step 3: Cross multiply
    140,381.90x = 193,740.38 × 76,729.26
  4. Step 4: Simplify right side
    140,381.90x = 14,865,555,605.87
  5. Step 5: Solve for x
    x = 14,865,555,605.87/140,381.90
  6. Step 6: Final answer
    x = 105,893.68

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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.