Home / 131,957.56-182,093.70-78,247.72

Finding the Fourth Proportional to 131,957.56, 182,093.70 and 78,247.72

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Solution

The fourth proportional to 131,957.56, 182,093.70 and 78,247.72 is: 107,977.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,957.56 : 182,093.70 = 78,247.72 : x
  2. Step 2: Convert to fraction form
    131,957.56/182,093.70 = 78,247.72/x
  3. Step 3: Cross multiply
    131,957.56x = 182,093.70 × 78,247.72
  4. Step 4: Simplify right side
    131,957.56x = 14,248,416,851.36
  5. Step 5: Solve for x
    x = 14,248,416,851.36/131,957.56
  6. Step 6: Final answer
    x = 107,977.27

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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.