Home / 137,246.30-189,400.83-76,822.53

Finding the Fourth Proportional to 137,246.30, 189,400.83 and 76,822.53

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Solution

The fourth proportional to 137,246.30, 189,400.83 and 76,822.53 is: 106,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246.30 : 189,400.83 = 76,822.53 : x
  2. Step 2: Convert to fraction form
    137,246.30/189,400.83 = 76,822.53/x
  3. Step 3: Cross multiply
    137,246.30x = 189,400.83 × 76,822.53
  4. Step 4: Simplify right side
    137,246.30x = 14,550,250,378.49
  5. Step 5: Solve for x
    x = 14,550,250,378.49/137,246.30
  6. Step 6: Final answer
    x = 106,015.61

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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.