Home / 268,160.64-402,240.48-68,481.06

Finding the Fourth Proportional to 268,160.64, 402,240.48 and 68,481.06

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Solution

The fourth proportional to 268,160.64, 402,240.48 and 68,481.06 is: 102,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,160.64 : 402,240.48 = 68,481.06 : x
  2. Step 2: Convert to fraction form
    268,160.64/402,240.48 = 68,481.06/x
  3. Step 3: Cross multiply
    268,160.64x = 402,240.48 × 68,481.06
  4. Step 4: Simplify right side
    268,160.64x = 27,545,854,445.31
  5. Step 5: Solve for x
    x = 27,545,854,445.31/268,160.64
  6. Step 6: Final answer
    x = 102,721.47

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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.