Home / 140,133.59-193,390.16-79,714.88

Finding the Fourth Proportional to 140,133.59, 193,390.16 and 79,714.88

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Solution

The fourth proportional to 140,133.59, 193,390.16 and 79,714.88 is: 110,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,133.59 : 193,390.16 = 79,714.88 : x
  2. Step 2: Convert to fraction form
    140,133.59/193,390.16 = 79,714.88/x
  3. Step 3: Cross multiply
    140,133.59x = 193,390.16 × 79,714.88
  4. Step 4: Simplify right side
    140,133.59x = 15,416,072,032.06
  5. Step 5: Solve for x
    x = 15,416,072,032.06/140,133.59
  6. Step 6: Final answer
    x = 110,009.83

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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.