Home / 143,861.40-215,823.23-55,114.90

Finding the Fourth Proportional to 143,861.40, 215,823.23 and 55,114.90

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Solution

The fourth proportional to 143,861.40, 215,823.23 and 55,114.90 is: 82,684.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,861.40 : 215,823.23 = 55,114.90 : x
  2. Step 2: Convert to fraction form
    143,861.40/215,823.23 = 55,114.90/x
  3. Step 3: Cross multiply
    143,861.40x = 215,823.23 × 55,114.90
  4. Step 4: Simplify right side
    143,861.40x = 11,895,075,739.13
  5. Step 5: Solve for x
    x = 11,895,075,739.13/143,861.40
  6. Step 6: Final answer
    x = 82,684.28

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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.