Home / 260,157.27-390,152.85-82,622.75

Finding the Fourth Proportional to 260,157.27, 390,152.85 and 82,622.75

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Solution

The fourth proportional to 260,157.27, 390,152.85 and 82,622.75 is: 123,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,157.27 : 390,152.85 = 82,622.75 : x
  2. Step 2: Convert to fraction form
    260,157.27/390,152.85 = 82,622.75/x
  3. Step 3: Cross multiply
    260,157.27x = 390,152.85 × 82,622.75
  4. Step 4: Simplify right side
    260,157.27x = 32,235,501,786.10
  5. Step 5: Solve for x
    x = 32,235,501,786.10/260,157.27
  6. Step 6: Final answer
    x = 123,907.75

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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.