Home / 236,490.38-326,363.60-129,067.28

Finding the Fourth Proportional to 236,490.38, 326,363.60 and 129,067.28

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Solution

The fourth proportional to 236,490.38, 326,363.60 and 129,067.28 is: 178,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,490.38 : 326,363.60 = 129,067.28 : x
  2. Step 2: Convert to fraction form
    236,490.38/326,363.60 = 129,067.28/x
  3. Step 3: Cross multiply
    236,490.38x = 326,363.60 × 129,067.28
  4. Step 4: Simplify right side
    236,490.38x = 42,122,862,143.01
  5. Step 5: Solve for x
    x = 42,122,862,143.01/236,490.38
  6. Step 6: Final answer
    x = 178,116.60

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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.