Home / 129,863.40-194,795.10-103,291.35

Finding the Fourth Proportional to 129,863.40, 194,795.10 and 103,291.35

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Solution

The fourth proportional to 129,863.40, 194,795.10 and 103,291.35 is: 154,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,863.40 : 194,795.10 = 103,291.35 : x
  2. Step 2: Convert to fraction form
    129,863.40/194,795.10 = 103,291.35/x
  3. Step 3: Cross multiply
    129,863.40x = 194,795.10 × 103,291.35
  4. Step 4: Simplify right side
    129,863.40x = 20,120,648,852.39
  5. Step 5: Solve for x
    x = 20,120,648,852.39/129,863.40
  6. Step 6: Final answer
    x = 154,937.03

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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.