Home / 144,926-216,843.96-85,789.52

Finding the Fourth Proportional to 144,926, 216,843.96 and 85,789.52

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Solution

The fourth proportional to 144,926, 216,843.96 and 85,789.52 is: 128,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,926 : 216,843.96 = 85,789.52 : x
  2. Step 2: Convert to fraction form
    144,926/216,843.96 = 85,789.52/x
  3. Step 3: Cross multiply
    144,926x = 216,843.96 × 85,789.52
  4. Step 4: Simplify right side
    144,926x = 18,602,939,243.30
  5. Step 5: Solve for x
    x = 18,602,939,243.30/144,926
  6. Step 6: Final answer
    x = 128,361.64

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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.