Home / 211,967.45-292,528.16-121,321.48

Finding the Fourth Proportional to 211,967.45, 292,528.16 and 121,321.48

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Solution

The fourth proportional to 211,967.45, 292,528.16 and 121,321.48 is: 167,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,967.45 : 292,528.16 = 121,321.48 : x
  2. Step 2: Convert to fraction form
    211,967.45/292,528.16 = 121,321.48/x
  3. Step 3: Cross multiply
    211,967.45x = 292,528.16 × 121,321.48
  4. Step 4: Simplify right side
    211,967.45x = 35,489,947,974.95
  5. Step 5: Solve for x
    x = 35,489,947,974.95/211,967.45
  6. Step 6: Final answer
    x = 167,431.13

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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.