Home / 131,429.45-181,183.80-93,638.09

Finding the Fourth Proportional to 131,429.45, 181,183.80 and 93,638.09

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Solution

The fourth proportional to 131,429.45, 181,183.80 and 93,638.09 is: 129,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.45 : 181,183.80 = 93,638.09 : x
  2. Step 2: Convert to fraction form
    131,429.45/181,183.80 = 93,638.09/x
  3. Step 3: Cross multiply
    131,429.45x = 181,183.80 × 93,638.09
  4. Step 4: Simplify right side
    131,429.45x = 16,965,704,970.94
  5. Step 5: Solve for x
    x = 16,965,704,970.94/131,429.45
  6. Step 6: Final answer
    x = 129,086.02

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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.