Home / 140,308.96-193,619.13-76,634.45

Finding the Fourth Proportional to 140,308.96, 193,619.13 and 76,634.45

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Solution

The fourth proportional to 140,308.96, 193,619.13 and 76,634.45 is: 105,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,308.96 : 193,619.13 = 76,634.45 : x
  2. Step 2: Convert to fraction form
    140,308.96/193,619.13 = 76,634.45/x
  3. Step 3: Cross multiply
    140,308.96x = 193,619.13 × 76,634.45
  4. Step 4: Simplify right side
    140,308.96x = 14,837,895,537.03
  5. Step 5: Solve for x
    x = 14,837,895,537.03/140,308.96
  6. Step 6: Final answer
    x = 105,751.59

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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.