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Finding the Fourth Proportional to 187,484.86, 258,783.42 and 106,956.28

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Solution

The fourth proportional to 187,484.86, 258,783.42 and 106,956.28 is: 147,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,484.86 : 258,783.42 = 106,956.28 : x
  2. Step 2: Convert to fraction form
    187,484.86/258,783.42 = 106,956.28/x
  3. Step 3: Cross multiply
    187,484.86x = 258,783.42 × 106,956.28
  4. Step 4: Simplify right side
    187,484.86x = 27,678,511,928.88
  5. Step 5: Solve for x
    x = 27,678,511,928.88/187,484.86
  6. Step 6: Final answer
    x = 147,630.65

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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.