Home / 236,824.38-326,813.78-129,392.10

Finding the Fourth Proportional to 236,824.38, 326,813.78 and 129,392.10

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Solution

The fourth proportional to 236,824.38, 326,813.78 and 129,392.10 is: 178,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,824.38 : 326,813.78 = 129,392.10 : x
  2. Step 2: Convert to fraction form
    236,824.38/326,813.78 = 129,392.10/x
  3. Step 3: Cross multiply
    236,824.38x = 326,813.78 × 129,392.10
  4. Step 4: Simplify right side
    236,824.38x = 42,287,120,656.18
  5. Step 5: Solve for x
    x = 42,287,120,656.18/236,824.38
  6. Step 6: Final answer
    x = 178,558.98

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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.