Home / 122,458.69-168,944.70-70,741.61

Finding the Fourth Proportional to 122,458.69, 168,944.70 and 70,741.61

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Solution

The fourth proportional to 122,458.69, 168,944.70 and 70,741.61 is: 97,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,458.69 : 168,944.70 = 70,741.61 : x
  2. Step 2: Convert to fraction form
    122,458.69/168,944.70 = 70,741.61/x
  3. Step 3: Cross multiply
    122,458.69x = 168,944.70 × 70,741.61
  4. Step 4: Simplify right side
    122,458.69x = 11,951,420,078.97
  5. Step 5: Solve for x
    x = 11,951,420,078.97/122,458.69
  6. Step 6: Final answer
    x = 97,595.52

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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.