Home / 143,867.24-215,247.90-87,697.16

Finding the Fourth Proportional to 143,867.24, 215,247.90 and 87,697.16

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Solution

The fourth proportional to 143,867.24, 215,247.90 and 87,697.16 is: 131,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,867.24 : 215,247.90 = 87,697.16 : x
  2. Step 2: Convert to fraction form
    143,867.24/215,247.90 = 87,697.16/x
  3. Step 3: Cross multiply
    143,867.24x = 215,247.90 × 87,697.16
  4. Step 4: Simplify right side
    143,867.24x = 18,876,629,525.96
  5. Step 5: Solve for x
    x = 18,876,629,525.96/143,867.24
  6. Step 6: Final answer
    x = 131,208.67

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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.