Home / 140,418.64-193,777.70-76,756.68

Finding the Fourth Proportional to 140,418.64, 193,777.70 and 76,756.68

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Solution

The fourth proportional to 140,418.64, 193,777.70 and 76,756.68 is: 105,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,418.64 : 193,777.70 = 76,756.68 : x
  2. Step 2: Convert to fraction form
    140,418.64/193,777.70 = 76,756.68/x
  3. Step 3: Cross multiply
    140,418.64x = 193,777.70 × 76,756.68
  4. Step 4: Simplify right side
    140,418.64x = 14,873,732,910.04
  5. Step 5: Solve for x
    x = 14,873,732,910.04/140,418.64
  6. Step 6: Final answer
    x = 105,924.21

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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.