Home / 143,324.10-214,986.15-72,465.30

Finding the Fourth Proportional to 143,324.10, 214,986.15 and 72,465.30

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Solution

The fourth proportional to 143,324.10, 214,986.15 and 72,465.30 is: 108,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,324.10 : 214,986.15 = 72,465.30 : x
  2. Step 2: Convert to fraction form
    143,324.10/214,986.15 = 72,465.30/x
  3. Step 3: Cross multiply
    143,324.10x = 214,986.15 × 72,465.30
  4. Step 4: Simplify right side
    143,324.10x = 15,579,035,855.60
  5. Step 5: Solve for x
    x = 15,579,035,855.60/143,324.10
  6. Step 6: Final answer
    x = 108,697.95

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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.