Home / 142,245.96-196,305.04-81,816.50

Finding the Fourth Proportional to 142,245.96, 196,305.04 and 81,816.50

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Solution

The fourth proportional to 142,245.96, 196,305.04 and 81,816.50 is: 112,910.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,245.96 : 196,305.04 = 81,816.50 : x
  2. Step 2: Convert to fraction form
    142,245.96/196,305.04 = 81,816.50/x
  3. Step 3: Cross multiply
    142,245.96x = 196,305.04 × 81,816.50
  4. Step 4: Simplify right side
    142,245.96x = 16,060,991,305.16
  5. Step 5: Solve for x
    x = 16,060,991,305.16/142,245.96
  6. Step 6: Final answer
    x = 112,910.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.