Home / 236,863.67-326,858.09-129,434.58

Finding the Fourth Proportional to 236,863.67, 326,858.09 and 129,434.58

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Solution

The fourth proportional to 236,863.67, 326,858.09 and 129,434.58 is: 178,612.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,863.67 : 326,858.09 = 129,434.58 : x
  2. Step 2: Convert to fraction form
    236,863.67/326,858.09 = 129,434.58/x
  3. Step 3: Cross multiply
    236,863.67x = 326,858.09 × 129,434.58
  4. Step 4: Simplify right side
    236,863.67x = 42,306,738,951.58
  5. Step 5: Solve for x
    x = 42,306,738,951.58/236,863.67
  6. Step 6: Final answer
    x = 178,612.19

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1.5x scale

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.