Home / 236,864.15-326,858.60-129,412.79

Finding the Fourth Proportional to 236,864.15, 326,858.60 and 129,412.79

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Solution

The fourth proportional to 236,864.15, 326,858.60 and 129,412.79 is: 178,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,864.15 : 326,858.60 = 129,412.79 : x
  2. Step 2: Convert to fraction form
    236,864.15/326,858.60 = 129,412.79/x
  3. Step 3: Cross multiply
    236,864.15x = 326,858.60 × 129,412.79
  4. Step 4: Simplify right side
    236,864.15x = 42,299,682,714.43
  5. Step 5: Solve for x
    x = 42,299,682,714.43/236,864.15
  6. Step 6: Final answer
    x = 178,582.04

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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.