Home / 211,742.28-292,147.31-121,079.52

Finding the Fourth Proportional to 211,742.28, 292,147.31 and 121,079.52

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Solution

The fourth proportional to 211,742.28, 292,147.31 and 121,079.52 is: 167,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,742.28 : 292,147.31 = 121,079.52 : x
  2. Step 2: Convert to fraction form
    211,742.28/292,147.31 = 121,079.52/x
  3. Step 3: Cross multiply
    211,742.28x = 292,147.31 × 121,079.52
  4. Step 4: Simplify right side
    211,742.28x = 35,373,056,366.79
  5. Step 5: Solve for x
    x = 35,373,056,366.79/211,742.28
  6. Step 6: Final answer
    x = 167,057.12

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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.