Home / 137,284.98-189,456.48-76,854.12

Finding the Fourth Proportional to 137,284.98, 189,456.48 and 76,854.12

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Solution

The fourth proportional to 137,284.98, 189,456.48 and 76,854.12 is: 106,060.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,284.98 : 189,456.48 = 76,854.12 : x
  2. Step 2: Convert to fraction form
    137,284.98/189,456.48 = 76,854.12/x
  3. Step 3: Cross multiply
    137,284.98x = 189,456.48 × 76,854.12
  4. Step 4: Simplify right side
    137,284.98x = 14,560,511,048.70
  5. Step 5: Solve for x
    x = 14,560,511,048.70/137,284.98
  6. Step 6: Final answer
    x = 106,060.48

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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.