Home / 211,770.28-292,185.90-121,107.52

Finding the Fourth Proportional to 211,770.28, 292,185.90 and 121,107.52

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Solution

The fourth proportional to 211,770.28, 292,185.90 and 121,107.52 is: 167,095.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,770.28 : 292,185.90 = 121,107.52 : x
  2. Step 2: Convert to fraction form
    211,770.28/292,185.90 = 121,107.52/x
  3. Step 3: Cross multiply
    211,770.28x = 292,185.90 × 121,107.52
  4. Step 4: Simplify right side
    211,770.28x = 35,385,909,727.97
  5. Step 5: Solve for x
    x = 35,385,909,727.97/211,770.28
  6. Step 6: Final answer
    x = 167,095.73

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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.