Home / 140,750.89-194,236.11-76,220.10

Finding the Fourth Proportional to 140,750.89, 194,236.11 and 76,220.10

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Solution

The fourth proportional to 140,750.89, 194,236.11 and 76,220.10 is: 105,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,750.89 : 194,236.11 = 76,220.10 : x
  2. Step 2: Convert to fraction form
    140,750.89/194,236.11 = 76,220.10/x
  3. Step 3: Cross multiply
    140,750.89x = 194,236.11 × 76,220.10
  4. Step 4: Simplify right side
    140,750.89x = 14,804,695,727.81
  5. Step 5: Solve for x
    x = 14,804,695,727.81/140,750.89
  6. Step 6: Final answer
    x = 105,183.67

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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.