Home / 125,511.06-187,796.04-74,724.34

Finding the Fourth Proportional to 125,511.06, 187,796.04 and 74,724.34

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Solution

The fourth proportional to 125,511.06, 187,796.04 and 74,724.34 is: 111,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,511.06 : 187,796.04 = 74,724.34 : x
  2. Step 2: Convert to fraction form
    125,511.06/187,796.04 = 74,724.34/x
  3. Step 3: Cross multiply
    125,511.06x = 187,796.04 × 74,724.34
  4. Step 4: Simplify right side
    125,511.06x = 14,032,935,143.61
  5. Step 5: Solve for x
    x = 14,032,935,143.61/125,511.06
  6. Step 6: Final answer
    x = 111,806.36

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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.