Home / 129,115.40-193,673.25-40,369.37

Finding the Fourth Proportional to 129,115.40, 193,673.25 and 40,369.37

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Solution

The fourth proportional to 129,115.40, 193,673.25 and 40,369.37 is: 60,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,115.40 : 193,673.25 = 40,369.37 : x
  2. Step 2: Convert to fraction form
    129,115.40/193,673.25 = 40,369.37/x
  3. Step 3: Cross multiply
    129,115.40x = 193,673.25 × 40,369.37
  4. Step 4: Simplify right side
    129,115.40x = 7,818,467,088.35
  5. Step 5: Solve for x
    x = 7,818,467,088.35/129,115.40
  6. Step 6: Final answer
    x = 60,554.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.