Home / 140,486.42-193,871.17-76,824.21

Finding the Fourth Proportional to 140,486.42, 193,871.17 and 76,824.21

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Solution

The fourth proportional to 140,486.42, 193,871.17 and 76,824.21 is: 106,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,486.42 : 193,871.17 = 76,824.21 : x
  2. Step 2: Convert to fraction form
    140,486.42/193,871.17 = 76,824.21/x
  3. Step 3: Cross multiply
    140,486.42x = 193,871.17 × 76,824.21
  4. Step 4: Simplify right side
    140,486.42x = 14,894,000,300.07
  5. Step 5: Solve for x
    x = 14,894,000,300.07/140,486.42
  6. Step 6: Final answer
    x = 106,017.37

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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.