Home / 140,066.10-193,292.61-76,405.23

Finding the Fourth Proportional to 140,066.10, 193,292.61 and 76,405.23

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Solution

The fourth proportional to 140,066.10, 193,292.61 and 76,405.23 is: 105,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,066.10 : 193,292.61 = 76,405.23 : x
  2. Step 2: Convert to fraction form
    140,066.10/193,292.61 = 76,405.23/x
  3. Step 3: Cross multiply
    140,066.10x = 193,292.61 × 76,405.23
  4. Step 4: Simplify right side
    140,066.10x = 14,768,566,324.35
  5. Step 5: Solve for x
    x = 14,768,566,324.35/140,066.10
  6. Step 6: Final answer
    x = 105,439.98

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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.