Home / 83,234.72-125,122.74-66,774.83

Finding the Fourth Proportional to 83,234.72, 125,122.74 and 66,774.83

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Solution

The fourth proportional to 83,234.72, 125,122.74 and 66,774.83 is: 100,379.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,234.72 : 125,122.74 = 66,774.83 : x
  2. Step 2: Convert to fraction form
    83,234.72/125,122.74 = 66,774.83/x
  3. Step 3: Cross multiply
    83,234.72x = 125,122.74 × 66,774.83
  4. Step 4: Simplify right side
    83,234.72x = 8,355,048,816.61
  5. Step 5: Solve for x
    x = 8,355,048,816.61/83,234.72
  6. Step 6: Final answer
    x = 100,379.37

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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.