Home / 140,308.68-193,630.24-76,650.58

Finding the Fourth Proportional to 140,308.68, 193,630.24 and 76,650.58

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Solution

The fourth proportional to 140,308.68, 193,630.24 and 76,650.58 is: 105,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,308.68 : 193,630.24 = 76,650.58 : x
  2. Step 2: Convert to fraction form
    140,308.68/193,630.24 = 76,650.58/x
  3. Step 3: Cross multiply
    140,308.68x = 193,630.24 × 76,650.58
  4. Step 4: Simplify right side
    140,308.68x = 14,841,870,201.54
  5. Step 5: Solve for x
    x = 14,841,870,201.54/140,308.68
  6. Step 6: Final answer
    x = 105,780.13

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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.