Home / 236,371.60-326,180.82-128,940.76

Finding the Fourth Proportional to 236,371.60, 326,180.82 and 128,940.76

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Solution

The fourth proportional to 236,371.60, 326,180.82 and 128,940.76 is: 177,931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,371.60 : 326,180.82 = 128,940.76 : x
  2. Step 2: Convert to fraction form
    236,371.60/326,180.82 = 128,940.76/x
  3. Step 3: Cross multiply
    236,371.60x = 326,180.82 × 128,940.76
  4. Step 4: Simplify right side
    236,371.60x = 42,058,002,828.22
  5. Step 5: Solve for x
    x = 42,058,002,828.22/236,371.60
  6. Step 6: Final answer
    x = 177,931.71

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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.