Home / 215,628.19-323,592.37-89,269.09

Finding the Fourth Proportional to 215,628.19, 323,592.37 and 89,269.09

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Solution

The fourth proportional to 215,628.19, 323,592.37 and 89,269.09 is: 133,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,628.19 : 323,592.37 = 89,269.09 : x
  2. Step 2: Convert to fraction form
    215,628.19/323,592.37 = 89,269.09/x
  3. Step 3: Cross multiply
    215,628.19x = 323,592.37 × 89,269.09
  4. Step 4: Simplify right side
    215,628.19x = 28,886,796,400.84
  5. Step 5: Solve for x
    x = 28,886,796,400.84/215,628.19
  6. Step 6: Final answer
    x = 133,965.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.