Home / 181,867.07-251,080.66-121,539.89

Finding the Fourth Proportional to 181,867.07, 251,080.66 and 121,539.89

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Solution

The fourth proportional to 181,867.07, 251,080.66 and 121,539.89 is: 167,794.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,867.07 : 251,080.66 = 121,539.89 : x
  2. Step 2: Convert to fraction form
    181,867.07/251,080.66 = 121,539.89/x
  3. Step 3: Cross multiply
    181,867.07x = 251,080.66 × 121,539.89
  4. Step 4: Simplify right side
    181,867.07x = 30,516,316,577.15
  5. Step 5: Solve for x
    x = 30,516,316,577.15/181,867.07
  6. Step 6: Final answer
    x = 167,794.62

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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.