Home / 202,282.61-279,092.45-121,669.79

Finding the Fourth Proportional to 202,282.61, 279,092.45 and 121,669.79

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Solution

The fourth proportional to 202,282.61, 279,092.45 and 121,669.79 is: 167,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,282.61 : 279,092.45 = 121,669.79 : x
  2. Step 2: Convert to fraction form
    202,282.61/279,092.45 = 121,669.79/x
  3. Step 3: Cross multiply
    202,282.61x = 279,092.45 × 121,669.79
  4. Step 4: Simplify right side
    202,282.61x = 33,957,118,690.80
  5. Step 5: Solve for x
    x = 33,957,118,690.80/202,282.61
  6. Step 6: Final answer
    x = 167,869.69

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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.