Home / 345,671.37-518,506.41-135,161.67

Finding the Fourth Proportional to 345,671.37, 518,506.41 and 135,161.67

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Solution

The fourth proportional to 345,671.37, 518,506.41 and 135,161.67 is: 202,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,671.37 : 518,506.41 = 135,161.67 : x
  2. Step 2: Convert to fraction form
    345,671.37/518,506.41 = 135,161.67/x
  3. Step 3: Cross multiply
    345,671.37x = 518,506.41 × 135,161.67
  4. Step 4: Simplify right side
    345,671.37x = 70,082,192,281.30
  5. Step 5: Solve for x
    x = 70,082,192,281.30/345,671.37
  6. Step 6: Final answer
    x = 202,742.25

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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.