Home / 223,512.05-308,444.96-121,537.58

Finding the Fourth Proportional to 223,512.05, 308,444.96 and 121,537.58

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Solution

The fourth proportional to 223,512.05, 308,444.96 and 121,537.58 is: 167,720.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,512.05 : 308,444.96 = 121,537.58 : x
  2. Step 2: Convert to fraction form
    223,512.05/308,444.96 = 121,537.58/x
  3. Step 3: Cross multiply
    223,512.05x = 308,444.96 × 121,537.58
  4. Step 4: Simplify right side
    223,512.05x = 37,487,654,001.60
  5. Step 5: Solve for x
    x = 37,487,654,001.60/223,512.05
  6. Step 6: Final answer
    x = 167,720.95

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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.