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Finding the Fourth Proportional to 187,087.77, 280,742.37 and 68,842.14

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Solution

The fourth proportional to 187,087.77, 280,742.37 and 68,842.14 is: 103,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,087.77 : 280,742.37 = 68,842.14 : x
  2. Step 2: Convert to fraction form
    187,087.77/280,742.37 = 68,842.14/x
  3. Step 3: Cross multiply
    187,087.77x = 280,742.37 × 68,842.14
  4. Step 4: Simplify right side
    187,087.77x = 19,326,905,539.47
  5. Step 5: Solve for x
    x = 19,326,905,539.47/187,087.77
  6. Step 6: Final answer
    x = 103,303.95

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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.