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Finding the Fourth Proportional to 223,995.07, 335,795.78 and 83,720.89

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Solution

The fourth proportional to 223,995.07, 335,795.78 and 83,720.89 is: 125,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,995.07 : 335,795.78 = 83,720.89 : x
  2. Step 2: Convert to fraction form
    223,995.07/335,795.78 = 83,720.89/x
  3. Step 3: Cross multiply
    223,995.07x = 335,795.78 × 83,720.89
  4. Step 4: Simplify right side
    223,995.07x = 28,113,121,717.96
  5. Step 5: Solve for x
    x = 28,113,121,717.96/223,995.07
  6. Step 6: Final answer
    x = 125,507.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.