Home / 143,322.40-197,783.94-79,663.96

Finding the Fourth Proportional to 143,322.40, 197,783.94 and 79,663.96

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Solution

The fourth proportional to 143,322.40, 197,783.94 and 79,663.96 is: 109,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,322.40 : 197,783.94 = 79,663.96 : x
  2. Step 2: Convert to fraction form
    143,322.40/197,783.94 = 79,663.96/x
  3. Step 3: Cross multiply
    143,322.40x = 197,783.94 × 79,663.96
  4. Step 4: Simplify right side
    143,322.40x = 15,756,251,884.80
  5. Step 5: Solve for x
    x = 15,756,251,884.80/143,322.40
  6. Step 6: Final answer
    x = 109,935.72

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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.