Home / 143,117.88-197,506.44-79,458.36

Finding the Fourth Proportional to 143,117.88, 197,506.44 and 79,458.36

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Solution

The fourth proportional to 143,117.88, 197,506.44 and 79,458.36 is: 109,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,117.88 : 197,506.44 = 79,458.36 : x
  2. Step 2: Convert to fraction form
    143,117.88/197,506.44 = 79,458.36/x
  3. Step 3: Cross multiply
    143,117.88x = 197,506.44 × 79,458.36
  4. Step 4: Simplify right side
    143,117.88x = 15,693,537,811.84
  5. Step 5: Solve for x
    x = 15,693,537,811.84/143,117.88
  6. Step 6: Final answer
    x = 109,654.63

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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.