Home / 81,935.04-122,925.64-74,127.44

Finding the Fourth Proportional to 81,935.04, 122,925.64 and 74,127.44

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Solution

The fourth proportional to 81,935.04, 122,925.64 and 74,127.44 is: 111,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.04 : 122,925.64 = 74,127.44 : x
  2. Step 2: Convert to fraction form
    81,935.04/122,925.64 = 74,127.44/x
  3. Step 3: Cross multiply
    81,935.04x = 122,925.64 × 74,127.44
  4. Step 4: Simplify right side
    81,935.04x = 9,112,163,003.56
  5. Step 5: Solve for x
    x = 9,112,163,003.56/81,935.04
  6. Step 6: Final answer
    x = 111,212.04

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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.