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Finding the Fourth Proportional to 187,059.78, 280,429.29 and 68,670.18

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Solution

The fourth proportional to 187,059.78, 280,429.29 and 68,670.18 is: 102,946.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,059.78 : 280,429.29 = 68,670.18 : x
  2. Step 2: Convert to fraction form
    187,059.78/280,429.29 = 68,670.18/x
  3. Step 3: Cross multiply
    187,059.78x = 280,429.29 × 68,670.18
  4. Step 4: Simplify right side
    187,059.78x = 19,257,129,821.57
  5. Step 5: Solve for x
    x = 19,257,129,821.57/187,059.78
  6. Step 6: Final answer
    x = 102,946.39

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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.