Home / 140,367.69-193,712.21-76,709.59

Finding the Fourth Proportional to 140,367.69, 193,712.21 and 76,709.59

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Solution

The fourth proportional to 140,367.69, 193,712.21 and 76,709.59 is: 105,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,367.69 : 193,712.21 = 76,709.59 : x
  2. Step 2: Convert to fraction form
    140,367.69/193,712.21 = 76,709.59/x
  3. Step 3: Cross multiply
    140,367.69x = 193,712.21 × 76,709.59
  4. Step 4: Simplify right side
    140,367.69x = 14,859,584,207.09
  5. Step 5: Solve for x
    x = 14,859,584,207.09/140,367.69
  6. Step 6: Final answer
    x = 105,861.86

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1.5x scale

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.