Home / 136,770.62-205,153.81-70,172.32

Finding the Fourth Proportional to 136,770.62, 205,153.81 and 70,172.32

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Solution

The fourth proportional to 136,770.62, 205,153.81 and 70,172.32 is: 105,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,770.62 : 205,153.81 = 70,172.32 : x
  2. Step 2: Convert to fraction form
    136,770.62/205,153.81 = 70,172.32/x
  3. Step 3: Cross multiply
    136,770.62x = 205,153.81 × 70,172.32
  4. Step 4: Simplify right side
    136,770.62x = 14,396,118,453.68
  5. Step 5: Solve for x
    x = 14,396,118,453.68/136,770.62
  6. Step 6: Final answer
    x = 105,257.39

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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.