Home / 140,740.96-194,222.82-76,210.90

Finding the Fourth Proportional to 140,740.96, 194,222.82 and 76,210.90

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Solution

The fourth proportional to 140,740.96, 194,222.82 and 76,210.90 is: 105,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,740.96 : 194,222.82 = 76,210.90 : x
  2. Step 2: Convert to fraction form
    140,740.96/194,222.82 = 76,210.90/x
  3. Step 3: Cross multiply
    140,740.96x = 194,222.82 × 76,210.90
  4. Step 4: Simplify right side
    140,740.96x = 14,801,895,912.74
  5. Step 5: Solve for x
    x = 14,801,895,912.74/140,740.96
  6. Step 6: Final answer
    x = 105,171.20

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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.