Home / 143,588.48-215,365.76-38,415.68

Finding the Fourth Proportional to 143,588.48, 215,365.76 and 38,415.68

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Solution

The fourth proportional to 143,588.48, 215,365.76 and 38,415.68 is: 57,618.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,588.48 : 215,365.76 = 38,415.68 : x
  2. Step 2: Convert to fraction form
    143,588.48/215,365.76 = 38,415.68/x
  3. Step 3: Cross multiply
    143,588.48x = 215,365.76 × 38,415.68
  4. Step 4: Simplify right side
    143,588.48x = 8,273,422,119.12
  5. Step 5: Solve for x
    x = 8,273,422,119.12/143,588.48
  6. Step 6: Final answer
    x = 57,618.98

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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.