Home / 121,939.49-182,967.54-43,090.85

Finding the Fourth Proportional to 121,939.49, 182,967.54 and 43,090.85

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Solution

The fourth proportional to 121,939.49, 182,967.54 and 43,090.85 is: 64,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,939.49 : 182,967.54 = 43,090.85 : x
  2. Step 2: Convert to fraction form
    121,939.49/182,967.54 = 43,090.85/x
  3. Step 3: Cross multiply
    121,939.49x = 182,967.54 × 43,090.85
  4. Step 4: Simplify right side
    121,939.49x = 7,884,226,821.01
  5. Step 5: Solve for x
    x = 7,884,226,821.01/121,939.49
  6. Step 6: Final answer
    x = 64,656.88

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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.