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Finding the Fourth Proportional to 103,740.70, 155,392.35 and 103,740.70

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Solution

The fourth proportional to 103,740.70, 155,392.35 and 103,740.70 is: 155,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,740.70 : 155,392.35 = 103,740.70 : x
  2. Step 2: Convert to fraction form
    103,740.70/155,392.35 = 103,740.70/x
  3. Step 3: Cross multiply
    103,740.70x = 155,392.35 × 103,740.70
  4. Step 4: Simplify right side
    103,740.70x = 16,120,511,163.65
  5. Step 5: Solve for x
    x = 16,120,511,163.65/103,740.70
  6. Step 6: Final answer
    x = 155,392.35

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1.5x scale

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.