Home / 143,861.41-215,596.83-76,376.39

Finding the Fourth Proportional to 143,861.41, 215,596.83 and 76,376.39

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Solution

The fourth proportional to 143,861.41, 215,596.83 and 76,376.39 is: 114,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,861.41 : 215,596.83 = 76,376.39 : x
  2. Step 2: Convert to fraction form
    143,861.41/215,596.83 = 76,376.39/x
  3. Step 3: Cross multiply
    143,861.41x = 215,596.83 × 76,376.39
  4. Step 4: Simplify right side
    143,861.41x = 16,466,508,109.84
  5. Step 5: Solve for x
    x = 16,466,508,109.84/143,861.41
  6. Step 6: Final answer
    x = 114,460.91

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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.