Home / 143,563.37-215,328.63-38,390.54

Finding the Fourth Proportional to 143,563.37, 215,328.63 and 38,390.54

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Solution

The fourth proportional to 143,563.37, 215,328.63 and 38,390.54 is: 57,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,563.37 : 215,328.63 = 38,390.54 : x
  2. Step 2: Convert to fraction form
    143,563.37/215,328.63 = 38,390.54/x
  3. Step 3: Cross multiply
    143,563.37x = 215,328.63 × 38,390.54
  4. Step 4: Simplify right side
    143,563.37x = 8,266,581,306.52
  5. Step 5: Solve for x
    x = 8,266,581,306.52/143,563.37
  6. Step 6: Final answer
    x = 57,581.41

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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.