Home / 129,154.05-194,022.72-76,598.01

Finding the Fourth Proportional to 129,154.05, 194,022.72 and 76,598.01

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Solution

The fourth proportional to 129,154.05, 194,022.72 and 76,598.01 is: 115,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,154.05 : 194,022.72 = 76,598.01 : x
  2. Step 2: Convert to fraction form
    129,154.05/194,022.72 = 76,598.01/x
  3. Step 3: Cross multiply
    129,154.05x = 194,022.72 × 76,598.01
  4. Step 4: Simplify right side
    129,154.05x = 14,861,754,246.79
  5. Step 5: Solve for x
    x = 14,861,754,246.79/129,154.05
  6. Step 6: Final answer
    x = 115,069.98

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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.