Home / 143,378.34-215,023.80-38,183.64

Finding the Fourth Proportional to 143,378.34, 215,023.80 and 38,183.64

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Solution

The fourth proportional to 143,378.34, 215,023.80 and 38,183.64 is: 57,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,378.34 : 215,023.80 = 38,183.64 : x
  2. Step 2: Convert to fraction form
    143,378.34/215,023.80 = 38,183.64/x
  3. Step 3: Cross multiply
    143,378.34x = 215,023.80 × 38,183.64
  4. Step 4: Simplify right side
    143,378.34x = 8,210,391,370.63
  5. Step 5: Solve for x
    x = 8,210,391,370.63/143,378.34
  6. Step 6: Final answer
    x = 57,263.82

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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.