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Finding the Fourth Proportional to 187,078.26, 280,687.10 and 112,252.10

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Solution

The fourth proportional to 187,078.26, 280,687.10 and 112,252.10 is: 168,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,078.26 : 280,687.10 = 112,252.10 : x
  2. Step 2: Convert to fraction form
    187,078.26/280,687.10 = 112,252.10/x
  3. Step 3: Cross multiply
    187,078.26x = 280,687.10 × 112,252.10
  4. Step 4: Simplify right side
    187,078.26x = 31,507,716,417.91
  5. Step 5: Solve for x
    x = 31,507,716,417.91/187,078.26
  6. Step 6: Final answer
    x = 168,419.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.