Home / 268,756.24-403,192.68-81,762.88

Finding the Fourth Proportional to 268,756.24, 403,192.68 and 81,762.88

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Solution

The fourth proportional to 268,756.24, 403,192.68 and 81,762.88 is: 122,662.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,756.24 : 403,192.68 = 81,762.88 : x
  2. Step 2: Convert to fraction form
    268,756.24/403,192.68 = 81,762.88/x
  3. Step 3: Cross multiply
    268,756.24x = 403,192.68 × 81,762.88
  4. Step 4: Simplify right side
    268,756.24x = 32,966,194,711.72
  5. Step 5: Solve for x
    x = 32,966,194,711.72/268,756.24
  6. Step 6: Final answer
    x = 122,662.06

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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.