Home / 211,755.15-292,138.77-121,062.39

Finding the Fourth Proportional to 211,755.15, 292,138.77 and 121,062.39

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Solution

The fourth proportional to 211,755.15, 292,138.77 and 121,062.39 is: 167,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,755.15 : 292,138.77 = 121,062.39 : x
  2. Step 2: Convert to fraction form
    211,755.15/292,138.77 = 121,062.39/x
  3. Step 3: Cross multiply
    211,755.15x = 292,138.77 × 121,062.39
  4. Step 4: Simplify right side
    211,755.15x = 35,367,017,707.86
  5. Step 5: Solve for x
    x = 35,367,017,707.86/211,755.15
  6. Step 6: Final answer
    x = 167,018.45

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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.