Home / 112,943.22-169,451.73-81,327.39

Finding the Fourth Proportional to 112,943.22, 169,451.73 and 81,327.39

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Solution

The fourth proportional to 112,943.22, 169,451.73 and 81,327.39 is: 122,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,943.22 : 169,451.73 = 81,327.39 : x
  2. Step 2: Convert to fraction form
    112,943.22/169,451.73 = 81,327.39/x
  3. Step 3: Cross multiply
    112,943.22x = 169,451.73 × 81,327.39
  4. Step 4: Simplify right side
    112,943.22x = 13,781,066,931.88
  5. Step 5: Solve for x
    x = 13,781,066,931.88/112,943.22
  6. Step 6: Final answer
    x = 122,017.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.