Home / 143,638.72-215,509.92-50,158.24

Finding the Fourth Proportional to 143,638.72, 215,509.92 and 50,158.24

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Solution

The fourth proportional to 143,638.72, 215,509.92 and 50,158.24 is: 75,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,638.72 : 215,509.92 = 50,158.24 : x
  2. Step 2: Convert to fraction form
    143,638.72/215,509.92 = 50,158.24/x
  3. Step 3: Cross multiply
    143,638.72x = 215,509.92 × 50,158.24
  4. Step 4: Simplify right side
    143,638.72x = 10,809,598,289.74
  5. Step 5: Solve for x
    x = 10,809,598,289.74/143,638.72
  6. Step 6: Final answer
    x = 75,255.46

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1.5x scale

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.