Home / 132,031.64-182,198.74-78,284.49

Finding the Fourth Proportional to 132,031.64, 182,198.74 and 78,284.49

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Solution

The fourth proportional to 132,031.64, 182,198.74 and 78,284.49 is: 108,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,031.64 : 182,198.74 = 78,284.49 : x
  2. Step 2: Convert to fraction form
    132,031.64/182,198.74 = 78,284.49/x
  3. Step 3: Cross multiply
    132,031.64x = 182,198.74 × 78,284.49
  4. Step 4: Simplify right side
    132,031.64x = 14,263,335,952.41
  5. Step 5: Solve for x
    x = 14,263,335,952.41/132,031.64
  6. Step 6: Final answer
    x = 108,029.68

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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.