Home / 144,115.29-215,914.14-87,926.40

Finding the Fourth Proportional to 144,115.29, 215,914.14 and 87,926.40

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Solution

The fourth proportional to 144,115.29, 215,914.14 and 87,926.40 is: 131,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,115.29 : 215,914.14 = 87,926.40 : x
  2. Step 2: Convert to fraction form
    144,115.29/215,914.14 = 87,926.40/x
  3. Step 3: Cross multiply
    144,115.29x = 215,914.14 × 87,926.40
  4. Step 4: Simplify right side
    144,115.29x = 18,984,553,039.30
  5. Step 5: Solve for x
    x = 18,984,553,039.30/144,115.29
  6. Step 6: Final answer
    x = 131,731.71

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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.