Home / 131,808.08-181,887.94-78,098.04

Finding the Fourth Proportional to 131,808.08, 181,887.94 and 78,098.04

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Solution

The fourth proportional to 131,808.08, 181,887.94 and 78,098.04 is: 107,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,808.08 : 181,887.94 = 78,098.04 : x
  2. Step 2: Convert to fraction form
    131,808.08/181,887.94 = 78,098.04/x
  3. Step 3: Cross multiply
    131,808.08x = 181,887.94 × 78,098.04
  4. Step 4: Simplify right side
    131,808.08x = 14,205,091,613.64
  5. Step 5: Solve for x
    x = 14,205,091,613.64/131,808.08
  6. Step 6: Final answer
    x = 107,771.02

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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.