Home / 121,939.50-182,967.54-43,090.86

Finding the Fourth Proportional to 121,939.50, 182,967.54 and 43,090.86

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Solution

The fourth proportional to 121,939.50, 182,967.54 and 43,090.86 is: 64,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,939.50 : 182,967.54 = 43,090.86 : x
  2. Step 2: Convert to fraction form
    121,939.50/182,967.54 = 43,090.86/x
  3. Step 3: Cross multiply
    121,939.50x = 182,967.54 × 43,090.86
  4. Step 4: Simplify right side
    121,939.50x = 7,884,228,650.68
  5. Step 5: Solve for x
    x = 7,884,228,650.68/121,939.50
  6. Step 6: Final answer
    x = 64,656.89

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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.