Home / 140,712.51-194,183.58-76,182.45

Finding the Fourth Proportional to 140,712.51, 194,183.58 and 76,182.45

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Solution

The fourth proportional to 140,712.51, 194,183.58 and 76,182.45 is: 105,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712.51 : 194,183.58 = 76,182.45 : x
  2. Step 2: Convert to fraction form
    140,712.51/194,183.58 = 76,182.45/x
  3. Step 3: Cross multiply
    140,712.51x = 194,183.58 × 76,182.45
  4. Step 4: Simplify right side
    140,712.51x = 14,793,380,874.17
  5. Step 5: Solve for x
    x = 14,793,380,874.17/140,712.51
  6. Step 6: Final answer
    x = 105,131.95

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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.