Home / 131,785.08-181,863.72-71,356.44

Finding the Fourth Proportional to 131,785.08, 181,863.72 and 71,356.44

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Solution

The fourth proportional to 131,785.08, 181,863.72 and 71,356.44 is: 98,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,785.08 : 181,863.72 = 71,356.44 : x
  2. Step 2: Convert to fraction form
    131,785.08/181,863.72 = 71,356.44/x
  3. Step 3: Cross multiply
    131,785.08x = 181,863.72 × 71,356.44
  4. Step 4: Simplify right side
    131,785.08x = 12,977,147,624.36
  5. Step 5: Solve for x
    x = 12,977,147,624.36/131,785.08
  6. Step 6: Final answer
    x = 98,472.05

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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.