Home / 137,383.26-189,511.47-80,015.82

Finding the Fourth Proportional to 137,383.26, 189,511.47 and 80,015.82

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Solution

The fourth proportional to 137,383.26, 189,511.47 and 80,015.82 is: 110,376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,383.26 : 189,511.47 = 80,015.82 : x
  2. Step 2: Convert to fraction form
    137,383.26/189,511.47 = 80,015.82/x
  3. Step 3: Cross multiply
    137,383.26x = 189,511.47 × 80,015.82
  4. Step 4: Simplify right side
    137,383.26x = 15,163,915,671.46
  5. Step 5: Solve for x
    x = 15,163,915,671.46/137,383.26
  6. Step 6: Final answer
    x = 110,376.73

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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.