Home / 112,620.84-169,149.96-82,921.38

Finding the Fourth Proportional to 112,620.84, 169,149.96 and 82,921.38

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Solution

The fourth proportional to 112,620.84, 169,149.96 and 82,921.38 is: 124,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,620.84 : 169,149.96 = 82,921.38 : x
  2. Step 2: Convert to fraction form
    112,620.84/169,149.96 = 82,921.38/x
  3. Step 3: Cross multiply
    112,620.84x = 169,149.96 × 82,921.38
  4. Step 4: Simplify right side
    112,620.84x = 14,026,148,110.14
  5. Step 5: Solve for x
    x = 14,026,148,110.14/112,620.84
  6. Step 6: Final answer
    x = 124,543.10

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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.