Home / 140,134.48-193,389.69-76,476.37

Finding the Fourth Proportional to 140,134.48, 193,389.69 and 76,476.37

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Solution

The fourth proportional to 140,134.48, 193,389.69 and 76,476.37 is: 105,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,134.48 : 193,389.69 = 76,476.37 : x
  2. Step 2: Convert to fraction form
    140,134.48/193,389.69 = 76,476.37/x
  3. Step 3: Cross multiply
    140,134.48x = 193,389.69 × 76,476.37
  4. Step 4: Simplify right side
    140,134.48x = 14,789,741,486.63
  5. Step 5: Solve for x
    x = 14,789,741,486.63/140,134.48
  6. Step 6: Final answer
    x = 105,539.63

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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.