Home / 252,511.16-378,500.45-83,986.47

Finding the Fourth Proportional to 252,511.16, 378,500.45 and 83,986.47

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Solution

The fourth proportional to 252,511.16, 378,500.45 and 83,986.47 is: 125,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,511.16 : 378,500.45 = 83,986.47 : x
  2. Step 2: Convert to fraction form
    252,511.16/378,500.45 = 83,986.47/x
  3. Step 3: Cross multiply
    252,511.16x = 378,500.45 × 83,986.47
  4. Step 4: Simplify right side
    252,511.16x = 31,788,916,268.98
  5. Step 5: Solve for x
    x = 31,788,916,268.98/252,511.16
  6. Step 6: Final answer
    x = 125,891.14

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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.