Home / 140,136.16-193,370.88-79,714.48

Finding the Fourth Proportional to 140,136.16, 193,370.88 and 79,714.48

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Solution

The fourth proportional to 140,136.16, 193,370.88 and 79,714.48 is: 109,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,136.16 : 193,370.88 = 79,714.48 : x
  2. Step 2: Convert to fraction form
    140,136.16/193,370.88 = 79,714.48/x
  3. Step 3: Cross multiply
    140,136.16x = 193,370.88 × 79,714.48
  4. Step 4: Simplify right side
    140,136.16x = 15,414,459,146.34
  5. Step 5: Solve for x
    x = 15,414,459,146.34/140,136.16
  6. Step 6: Final answer
    x = 109,996.30

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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.