Home / 228,755.14-343,175.85-86,642.96

Finding the Fourth Proportional to 228,755.14, 343,175.85 and 86,642.96

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Solution

The fourth proportional to 228,755.14, 343,175.85 and 86,642.96 is: 129,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,755.14 : 343,175.85 = 86,642.96 : x
  2. Step 2: Convert to fraction form
    228,755.14/343,175.85 = 86,642.96/x
  3. Step 3: Cross multiply
    228,755.14x = 343,175.85 × 86,642.96
  4. Step 4: Simplify right side
    228,755.14x = 29,733,769,728.64
  5. Step 5: Solve for x
    x = 29,733,769,728.64/228,755.14
  6. Step 6: Final answer
    x = 129,980.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.