Home / 143,038.58-197,394.41-79,377.44

Finding the Fourth Proportional to 143,038.58, 197,394.41 and 79,377.44

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Solution

The fourth proportional to 143,038.58, 197,394.41 and 79,377.44 is: 109,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,038.58 : 197,394.41 = 79,377.44 : x
  2. Step 2: Convert to fraction form
    143,038.58/197,394.41 = 79,377.44/x
  3. Step 3: Cross multiply
    143,038.58x = 197,394.41 × 79,377.44
  4. Step 4: Simplify right side
    143,038.58x = 15,668,662,147.58
  5. Step 5: Solve for x
    x = 15,668,662,147.58/143,038.58
  6. Step 6: Final answer
    x = 109,541.51

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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.