Home / 131,905.44-182,002.68-78,166.80

Finding the Fourth Proportional to 131,905.44, 182,002.68 and 78,166.80

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Solution

The fourth proportional to 131,905.44, 182,002.68 and 78,166.80 is: 107,854.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,905.44 : 182,002.68 = 78,166.80 : x
  2. Step 2: Convert to fraction form
    131,905.44/182,002.68 = 78,166.80/x
  3. Step 3: Cross multiply
    131,905.44x = 182,002.68 × 78,166.80
  4. Step 4: Simplify right side
    131,905.44x = 14,226,567,087.02
  5. Step 5: Solve for x
    x = 14,226,567,087.02/131,905.44
  6. Step 6: Final answer
    x = 107,854.29

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1.5x scale

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.