Home / 140,392.88-193,742.52-76,731.44

Finding the Fourth Proportional to 140,392.88, 193,742.52 and 76,731.44

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Solution

The fourth proportional to 140,392.88, 193,742.52 and 76,731.44 is: 105,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,392.88 : 193,742.52 = 76,731.44 : x
  2. Step 2: Convert to fraction form
    140,392.88/193,742.52 = 76,731.44/x
  3. Step 3: Cross multiply
    140,392.88x = 193,742.52 × 76,731.44
  4. Step 4: Simplify right side
    140,392.88x = 14,866,142,548.83
  5. Step 5: Solve for x
    x = 14,866,142,548.83/140,392.88
  6. Step 6: Final answer
    x = 105,889.58

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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.