Home / 144,039.21-216,062.81-38,857.88

Finding the Fourth Proportional to 144,039.21, 216,062.81 and 38,857.88

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Solution

The fourth proportional to 144,039.21, 216,062.81 and 38,857.88 is: 58,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,039.21 : 216,062.81 = 38,857.88 : x
  2. Step 2: Convert to fraction form
    144,039.21/216,062.81 = 38,857.88/x
  3. Step 3: Cross multiply
    144,039.21x = 216,062.81 × 38,857.88
  4. Step 4: Simplify right side
    144,039.21x = 8,395,741,468.84
  5. Step 5: Solve for x
    x = 8,395,741,468.84/144,039.21
  6. Step 6: Final answer
    x = 58,287.89

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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.