Home / 126,608.58-189,842.79-51,781.26

Finding the Fourth Proportional to 126,608.58, 189,842.79 and 51,781.26

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Solution

The fourth proportional to 126,608.58, 189,842.79 and 51,781.26 is: 77,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,608.58 : 189,842.79 = 51,781.26 : x
  2. Step 2: Convert to fraction form
    126,608.58/189,842.79 = 51,781.26/x
  3. Step 3: Cross multiply
    126,608.58x = 189,842.79 × 51,781.26
  4. Step 4: Simplify right side
    126,608.58x = 9,830,298,868.12
  5. Step 5: Solve for x
    x = 9,830,298,868.12/126,608.58
  6. Step 6: Final answer
    x = 77,643.23

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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.