Home / 253,999.18-381,014.60-67,010.86

Finding the Fourth Proportional to 253,999.18, 381,014.60 and 67,010.86

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Solution

The fourth proportional to 253,999.18, 381,014.60 and 67,010.86 is: 100,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,999.18 : 381,014.60 = 67,010.86 : x
  2. Step 2: Convert to fraction form
    253,999.18/381,014.60 = 67,010.86/x
  3. Step 3: Cross multiply
    253,999.18x = 381,014.60 × 67,010.86
  4. Step 4: Simplify right side
    253,999.18x = 25,532,116,018.56
  5. Step 5: Solve for x
    x = 25,532,116,018.56/253,999.18
  6. Step 6: Final answer
    x = 100,520.47

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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.