Home / 236,861.10-326,864.36-129,428.66

Finding the Fourth Proportional to 236,861.10, 326,864.36 and 129,428.66

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Solution

The fourth proportional to 236,861.10, 326,864.36 and 129,428.66 is: 178,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,861.10 : 326,864.36 = 129,428.66 : x
  2. Step 2: Convert to fraction form
    236,861.10/326,864.36 = 129,428.66/x
  3. Step 3: Cross multiply
    236,861.10x = 326,864.36 × 129,428.66
  4. Step 4: Simplify right side
    236,861.10x = 42,305,616,116.56
  5. Step 5: Solve for x
    x = 42,305,616,116.56/236,861.10
  6. Step 6: Final answer
    x = 178,609.39

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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.