Home / 131,450.70-197,321.85-101,999.10

Finding the Fourth Proportional to 131,450.70, 197,321.85 and 101,999.10

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Solution

The fourth proportional to 131,450.70, 197,321.85 and 101,999.10 is: 153,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,450.70 : 197,321.85 = 101,999.10 : x
  2. Step 2: Convert to fraction form
    131,450.70/197,321.85 = 101,999.10/x
  3. Step 3: Cross multiply
    131,450.70x = 197,321.85 × 101,999.10
  4. Step 4: Simplify right side
    131,450.70x = 20,126,651,110.34
  5. Step 5: Solve for x
    x = 20,126,651,110.34/131,450.70
  6. Step 6: Final answer
    x = 153,111.78

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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.