Home / 236,488.38-326,360.84-129,065.28

Finding the Fourth Proportional to 236,488.38, 326,360.84 and 129,065.28

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Solution

The fourth proportional to 236,488.38, 326,360.84 and 129,065.28 is: 178,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,488.38 : 326,360.84 = 129,065.28 : x
  2. Step 2: Convert to fraction form
    236,488.38/326,360.84 = 129,065.28/x
  3. Step 3: Cross multiply
    236,488.38x = 326,360.84 × 129,065.28
  4. Step 4: Simplify right side
    236,488.38x = 42,121,853,195.64
  5. Step 5: Solve for x
    x = 42,121,853,195.64/236,488.38
  6. Step 6: Final answer
    x = 178,113.84

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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.