Home / 268,966.08-403,509.60-81,996.48

Finding the Fourth Proportional to 268,966.08, 403,509.60 and 81,996.48

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Solution

The fourth proportional to 268,966.08, 403,509.60 and 81,996.48 is: 123,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,966.08 : 403,509.60 = 81,996.48 : x
  2. Step 2: Convert to fraction form
    268,966.08/403,509.60 = 81,996.48/x
  3. Step 3: Cross multiply
    268,966.08x = 403,509.60 × 81,996.48
  4. Step 4: Simplify right side
    268,966.08x = 33,086,366,846.21
  5. Step 5: Solve for x
    x = 33,086,366,846.21/268,966.08
  6. Step 6: Final answer
    x = 123,013.16

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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.