Home / 140,051.63-193,270.05-76,388.06

Finding the Fourth Proportional to 140,051.63, 193,270.05 and 76,388.06

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Solution

The fourth proportional to 140,051.63, 193,270.05 and 76,388.06 is: 105,414.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,051.63 : 193,270.05 = 76,388.06 : x
  2. Step 2: Convert to fraction form
    140,051.63/193,270.05 = 76,388.06/x
  3. Step 3: Cross multiply
    140,051.63x = 193,270.05 × 76,388.06
  4. Step 4: Simplify right side
    140,051.63x = 14,763,524,658.78
  5. Step 5: Solve for x
    x = 14,763,524,658.78/140,051.63
  6. Step 6: Final answer
    x = 105,414.87

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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.