Home / 121,208.31-181,727.97-53,703.65

Finding the Fourth Proportional to 121,208.31, 181,727.97 and 53,703.65

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Solution

The fourth proportional to 121,208.31, 181,727.97 and 53,703.65 is: 80,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,208.31 : 181,727.97 = 53,703.65 : x
  2. Step 2: Convert to fraction form
    121,208.31/181,727.97 = 53,703.65/x
  3. Step 3: Cross multiply
    121,208.31x = 181,727.97 × 53,703.65
  4. Step 4: Simplify right side
    121,208.31x = 9,759,454,387.45
  5. Step 5: Solve for x
    x = 9,759,454,387.45/121,208.31
  6. Step 6: Final answer
    x = 80,518.03

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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.