Home / 131,956.56-182,092.32-78,246.72

Finding the Fourth Proportional to 131,956.56, 182,092.32 and 78,246.72

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Solution

The fourth proportional to 131,956.56, 182,092.32 and 78,246.72 is: 107,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,956.56 : 182,092.32 = 78,246.72 : x
  2. Step 2: Convert to fraction form
    131,956.56/182,092.32 = 78,246.72/x
  3. Step 3: Cross multiply
    131,956.56x = 182,092.32 × 78,246.72
  4. Step 4: Simplify right side
    131,956.56x = 14,248,126,777.19
  5. Step 5: Solve for x
    x = 14,248,126,777.19/131,956.56
  6. Step 6: Final answer
    x = 107,975.89

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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.