Home / 140,427.66-193,794.39-76,768.86

Finding the Fourth Proportional to 140,427.66, 193,794.39 and 76,768.86

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Solution

The fourth proportional to 140,427.66, 193,794.39 and 76,768.86 is: 105,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.66 : 193,794.39 = 76,768.86 : x
  2. Step 2: Convert to fraction form
    140,427.66/193,794.39 = 76,768.86/x
  3. Step 3: Cross multiply
    140,427.66x = 193,794.39 × 76,768.86
  4. Step 4: Simplify right side
    140,427.66x = 14,877,374,394.70
  5. Step 5: Solve for x
    x = 14,877,374,394.70/140,427.66
  6. Step 6: Final answer
    x = 105,943.33

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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.