Home / 137,228.34-189,383.46-76,797.73

Finding the Fourth Proportional to 137,228.34, 189,383.46 and 76,797.73

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Solution

The fourth proportional to 137,228.34, 189,383.46 and 76,797.73 is: 105,985.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,228.34 : 189,383.46 = 76,797.73 : x
  2. Step 2: Convert to fraction form
    137,228.34/189,383.46 = 76,797.73/x
  3. Step 3: Cross multiply
    137,228.34x = 189,383.46 × 76,797.73
  4. Step 4: Simplify right side
    137,228.34x = 14,544,219,776.28
  5. Step 5: Solve for x
    x = 14,544,219,776.28/137,228.34
  6. Step 6: Final answer
    x = 105,985.54

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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.