Home / 103,861.53-143,328.96-56,114.87

Finding the Fourth Proportional to 103,861.53, 143,328.96 and 56,114.87

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Solution

The fourth proportional to 103,861.53, 143,328.96 and 56,114.87 is: 77,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,861.53 : 143,328.96 = 56,114.87 : x
  2. Step 2: Convert to fraction form
    103,861.53/143,328.96 = 56,114.87/x
  3. Step 3: Cross multiply
    103,861.53x = 143,328.96 × 56,114.87
  4. Step 4: Simplify right side
    103,861.53x = 8,042,885,240.99
  5. Step 5: Solve for x
    x = 8,042,885,240.99/103,861.53
  6. Step 6: Final answer
    x = 77,438.54

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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.