Home / 129,459.40-194,189.10-76,096.60

Finding the Fourth Proportional to 129,459.40, 194,189.10 and 76,096.60

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Solution

The fourth proportional to 129,459.40, 194,189.10 and 76,096.60 is: 114,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,459.40 : 194,189.10 = 76,096.60 : x
  2. Step 2: Convert to fraction form
    129,459.40/194,189.10 = 76,096.60/x
  3. Step 3: Cross multiply
    129,459.40x = 194,189.10 × 76,096.60
  4. Step 4: Simplify right side
    129,459.40x = 14,777,130,267.06
  5. Step 5: Solve for x
    x = 14,777,130,267.06/129,459.40
  6. Step 6: Final answer
    x = 114,144.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.