Home / 137,246.58-189,377.68-86,223.19

Finding the Fourth Proportional to 137,246.58, 189,377.68 and 86,223.19

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Solution

The fourth proportional to 137,246.58, 189,377.68 and 86,223.19 is: 118,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246.58 : 189,377.68 = 86,223.19 : x
  2. Step 2: Convert to fraction form
    137,246.58/189,377.68 = 86,223.19/x
  3. Step 3: Cross multiply
    137,246.58x = 189,377.68 × 86,223.19
  4. Step 4: Simplify right side
    137,246.58x = 16,328,747,705.56
  5. Step 5: Solve for x
    x = 16,328,747,705.56/137,246.58
  6. Step 6: Final answer
    x = 118,973.81

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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.