Home / 137,295.36-189,464.94-76,866.12

Finding the Fourth Proportional to 137,295.36, 189,464.94 and 76,866.12

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Solution

The fourth proportional to 137,295.36, 189,464.94 and 76,866.12 is: 106,073.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,295.36 : 189,464.94 = 76,866.12 : x
  2. Step 2: Convert to fraction form
    137,295.36/189,464.94 = 76,866.12/x
  3. Step 3: Cross multiply
    137,295.36x = 189,464.94 × 76,866.12
  4. Step 4: Simplify right side
    137,295.36x = 14,563,434,813.83
  5. Step 5: Solve for x
    x = 14,563,434,813.83/137,295.36
  6. Step 6: Final answer
    x = 106,073.76

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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.