Home / 211,759.15-292,144.29-121,066.39

Finding the Fourth Proportional to 211,759.15, 292,144.29 and 121,066.39

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Solution

The fourth proportional to 211,759.15, 292,144.29 and 121,066.39 is: 167,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,759.15 : 292,144.29 = 121,066.39 : x
  2. Step 2: Convert to fraction form
    211,759.15/292,144.29 = 121,066.39/x
  3. Step 3: Cross multiply
    211,759.15x = 292,144.29 × 121,066.39
  4. Step 4: Simplify right side
    211,759.15x = 35,368,854,549.41
  5. Step 5: Solve for x
    x = 35,368,854,549.41/211,759.15
  6. Step 6: Final answer
    x = 167,023.97

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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.