Home / 80,154.72-120,249.36-23,999.28

Finding the Fourth Proportional to 80,154.72, 120,249.36 and 23,999.28

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Solution

The fourth proportional to 80,154.72, 120,249.36 and 23,999.28 is: 36,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,154.72 : 120,249.36 = 23,999.28 : x
  2. Step 2: Convert to fraction form
    80,154.72/120,249.36 = 23,999.28/x
  3. Step 3: Cross multiply
    80,154.72x = 120,249.36 × 23,999.28
  4. Step 4: Simplify right side
    80,154.72x = 2,885,898,060.46
  5. Step 5: Solve for x
    x = 2,885,898,060.46/80,154.72
  6. Step 6: Final answer
    x = 36,004.09

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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.