Home / 236,243.58-326,008.98-128,815.71

Finding the Fourth Proportional to 236,243.58, 326,008.98 and 128,815.71

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Solution

The fourth proportional to 236,243.58, 326,008.98 and 128,815.71 is: 177,761.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,243.58 : 326,008.98 = 128,815.71 : x
  2. Step 2: Convert to fraction form
    236,243.58/326,008.98 = 128,815.71/x
  3. Step 3: Cross multiply
    236,243.58x = 326,008.98 × 128,815.71
  4. Step 4: Simplify right side
    236,243.58x = 41,995,078,225.08
  5. Step 5: Solve for x
    x = 41,995,078,225.08/236,243.58
  6. Step 6: Final answer
    x = 177,761.78

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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.