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Finding the Fourth Proportional to 187,325.34, 258,512.76 and 102,447.87

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Solution

The fourth proportional to 187,325.34, 258,512.76 and 102,447.87 is: 141,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,325.34 : 258,512.76 = 102,447.87 : x
  2. Step 2: Convert to fraction form
    187,325.34/258,512.76 = 102,447.87/x
  3. Step 3: Cross multiply
    187,325.34x = 258,512.76 × 102,447.87
  4. Step 4: Simplify right side
    187,325.34x = 26,484,081,629.82
  5. Step 5: Solve for x
    x = 26,484,081,629.82/187,325.34
  6. Step 6: Final answer
    x = 141,380.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.