Home / 143,156.20-214,758.60-43,315.60

Finding the Fourth Proportional to 143,156.20, 214,758.60 and 43,315.60

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Solution

The fourth proportional to 143,156.20, 214,758.60 and 43,315.60 is: 64,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,156.20 : 214,758.60 = 43,315.60 : x
  2. Step 2: Convert to fraction form
    143,156.20/214,758.60 = 43,315.60/x
  3. Step 3: Cross multiply
    143,156.20x = 214,758.60 × 43,315.60
  4. Step 4: Simplify right side
    143,156.20x = 9,302,397,614.16
  5. Step 5: Solve for x
    x = 9,302,397,614.16/143,156.20
  6. Step 6: Final answer
    x = 64,980.75

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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.