Home / 142,245.45-196,304.37-81,816.03

Finding the Fourth Proportional to 142,245.45, 196,304.37 and 81,816.03

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Solution

The fourth proportional to 142,245.45, 196,304.37 and 81,816.03 is: 112,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,245.45 : 196,304.37 = 81,816.03 : x
  2. Step 2: Convert to fraction form
    142,245.45/196,304.37 = 81,816.03/x
  3. Step 3: Cross multiply
    142,245.45x = 196,304.37 × 81,816.03
  4. Step 4: Simplify right side
    142,245.45x = 16,060,844,225.05
  5. Step 5: Solve for x
    x = 16,060,844,225.05/142,245.45
  6. Step 6: Final answer
    x = 112,909.37

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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.