Home / 268,739.88-403,168.14-81,746.52

Finding the Fourth Proportional to 268,739.88, 403,168.14 and 81,746.52

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Solution

The fourth proportional to 268,739.88, 403,168.14 and 81,746.52 is: 122,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,739.88 : 403,168.14 = 81,746.52 : x
  2. Step 2: Convert to fraction form
    268,739.88/403,168.14 = 81,746.52/x
  3. Step 3: Cross multiply
    268,739.88x = 403,168.14 × 81,746.52
  4. Step 4: Simplify right side
    268,739.88x = 32,957,592,419.87
  5. Step 5: Solve for x
    x = 32,957,592,419.87/268,739.88
  6. Step 6: Final answer
    x = 122,637.52

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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.