Home / 143,506.50-215,119.21-53,483.30

Finding the Fourth Proportional to 143,506.50, 215,119.21 and 53,483.30

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Solution

The fourth proportional to 143,506.50, 215,119.21 and 53,483.30 is: 80,172.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,506.50 : 215,119.21 = 53,483.30 : x
  2. Step 2: Convert to fraction form
    143,506.50/215,119.21 = 53,483.30/x
  3. Step 3: Cross multiply
    143,506.50x = 215,119.21 × 53,483.30
  4. Step 4: Simplify right side
    143,506.50x = 11,505,285,244.19
  5. Step 5: Solve for x
    x = 11,505,285,244.19/143,506.50
  6. Step 6: Final answer
    x = 80,172.57

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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.