Home / 140,395.64-193,743.09-76,733.88

Finding the Fourth Proportional to 140,395.64, 193,743.09 and 76,733.88

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Solution

The fourth proportional to 140,395.64, 193,743.09 and 76,733.88 is: 105,891.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,395.64 : 193,743.09 = 76,733.88 : x
  2. Step 2: Convert to fraction form
    140,395.64/193,743.09 = 76,733.88/x
  3. Step 3: Cross multiply
    140,395.64x = 193,743.09 × 76,733.88
  4. Step 4: Simplify right side
    140,395.64x = 14,866,659,018.89
  5. Step 5: Solve for x
    x = 14,866,659,018.89/140,395.64
  6. Step 6: Final answer
    x = 105,891.18

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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.