Home / 236,414.58-326,253.22-128,986.86

Finding the Fourth Proportional to 236,414.58, 326,253.22 and 128,986.86

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Solution

The fourth proportional to 236,414.58, 326,253.22 and 128,986.86 is: 178,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,414.58 : 326,253.22 = 128,986.86 : x
  2. Step 2: Convert to fraction form
    236,414.58/326,253.22 = 128,986.86/x
  3. Step 3: Cross multiply
    236,414.58x = 326,253.22 × 128,986.86
  4. Step 4: Simplify right side
    236,414.58x = 42,082,378,412.69
  5. Step 5: Solve for x
    x = 42,082,378,412.69/236,414.58
  6. Step 6: Final answer
    x = 178,002.47

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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.