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Finding the Fourth Proportional to 142,950.58, 197,295.42 and 79,308.88

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Solution

The fourth proportional to 142,950.58, 197,295.42 and 79,308.88 is: 109,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,950.58 : 197,295.42 = 79,308.88 : x
  2. Step 2: Convert to fraction form
    142,950.58/197,295.42 = 79,308.88/x
  3. Step 3: Cross multiply
    142,950.58x = 197,295.42 × 79,308.88
  4. Step 4: Simplify right side
    142,950.58x = 15,647,278,789.33
  5. Step 5: Solve for x
    x = 15,647,278,789.33/142,950.58
  6. Step 6: Final answer
    x = 109,459.36

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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.