Home / 268,869.60-403,187.52-81,837.28

Finding the Fourth Proportional to 268,869.60, 403,187.52 and 81,837.28

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Solution

The fourth proportional to 268,869.60, 403,187.52 and 81,837.28 is: 122,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,869.60 : 403,187.52 = 81,837.28 : x
  2. Step 2: Convert to fraction form
    268,869.60/403,187.52 = 81,837.28/x
  3. Step 3: Cross multiply
    268,869.60x = 403,187.52 × 81,837.28
  4. Step 4: Simplify right side
    268,869.60x = 32,995,769,966.75
  5. Step 5: Solve for x
    x = 32,995,769,966.75/268,869.60
  6. Step 6: Final answer
    x = 122,720.34

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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.