Home / 215,618.74-323,490.51-89,235.65

Finding the Fourth Proportional to 215,618.74, 323,490.51 and 89,235.65

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Solution

The fourth proportional to 215,618.74, 323,490.51 and 89,235.65 is: 133,879.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,618.74 : 323,490.51 = 89,235.65 : x
  2. Step 2: Convert to fraction form
    215,618.74/323,490.51 = 89,235.65/x
  3. Step 3: Cross multiply
    215,618.74x = 323,490.51 × 89,235.65
  4. Step 4: Simplify right side
    215,618.74x = 28,866,886,737.41
  5. Step 5: Solve for x
    x = 28,866,886,737.41/215,618.74
  6. Step 6: Final answer
    x = 133,879.31

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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.