Home / 140,196.21-193,540.14-86,510.79

Finding the Fourth Proportional to 140,196.21, 193,540.14 and 86,510.79

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Solution

The fourth proportional to 140,196.21, 193,540.14 and 86,510.79 is: 119,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,196.21 : 193,540.14 = 86,510.79 : x
  2. Step 2: Convert to fraction form
    140,196.21/193,540.14 = 86,510.79/x
  3. Step 3: Cross multiply
    140,196.21x = 193,540.14 × 86,510.79
  4. Step 4: Simplify right side
    140,196.21x = 16,743,310,408.11
  5. Step 5: Solve for x
    x = 16,743,310,408.11/140,196.21
  6. Step 6: Final answer
    x = 119,427.70

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1.5x scale

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.