Home / 236,412.53-326,248.82-128,982.63

Finding the Fourth Proportional to 236,412.53, 326,248.82 and 128,982.63

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Solution

The fourth proportional to 236,412.53, 326,248.82 and 128,982.63 is: 177,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,412.53 : 326,248.82 = 128,982.63 : x
  2. Step 2: Convert to fraction form
    236,412.53/326,248.82 = 128,982.63/x
  3. Step 3: Cross multiply
    236,412.53x = 326,248.82 × 128,982.63
  4. Step 4: Simplify right side
    236,412.53x = 42,080,431,160.45
  5. Step 5: Solve for x
    x = 42,080,431,160.45/236,412.53
  6. Step 6: Final answer
    x = 177,995.78

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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.