Home / 143,855.24-215,756.88-38,649.60

Finding the Fourth Proportional to 143,855.24, 215,756.88 and 38,649.60

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Solution

The fourth proportional to 143,855.24, 215,756.88 and 38,649.60 is: 57,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,855.24 : 215,756.88 = 38,649.60 : x
  2. Step 2: Convert to fraction form
    143,855.24/215,756.88 = 38,649.60/x
  3. Step 3: Cross multiply
    143,855.24x = 215,756.88 × 38,649.60
  4. Step 4: Simplify right side
    143,855.24x = 8,338,917,109.25
  5. Step 5: Solve for x
    x = 8,338,917,109.25/143,855.24
  6. Step 6: Final answer
    x = 57,967.42

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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.