Home / 211,771.28-292,187.28-121,108.52

Finding the Fourth Proportional to 211,771.28, 292,187.28 and 121,108.52

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Solution

The fourth proportional to 211,771.28, 292,187.28 and 121,108.52 is: 167,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,771.28 : 292,187.28 = 121,108.52 : x
  2. Step 2: Convert to fraction form
    211,771.28/292,187.28 = 121,108.52/x
  3. Step 3: Cross multiply
    211,771.28x = 292,187.28 × 121,108.52
  4. Step 4: Simplify right side
    211,771.28x = 35,386,369,043.63
  5. Step 5: Solve for x
    x = 35,386,369,043.63/211,771.28
  6. Step 6: Final answer
    x = 167,097.11

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1.5x scale

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.