Home / 140,314.13-193,636.35-76,656.04

Finding the Fourth Proportional to 140,314.13, 193,636.35 and 76,656.04

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Solution

The fourth proportional to 140,314.13, 193,636.35 and 76,656.04 is: 105,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,314.13 : 193,636.35 = 76,656.04 : x
  2. Step 2: Convert to fraction form
    140,314.13/193,636.35 = 76,656.04/x
  3. Step 3: Cross multiply
    140,314.13x = 193,636.35 × 76,656.04
  4. Step 4: Simplify right side
    140,314.13x = 14,843,395,791.05
  5. Step 5: Solve for x
    x = 14,843,395,791.05/140,314.13
  6. Step 6: Final answer
    x = 105,786.89

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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.