Home / 129,812.27-194,206.21-98,313.40

Finding the Fourth Proportional to 129,812.27, 194,206.21 and 98,313.40

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Solution

The fourth proportional to 129,812.27, 194,206.21 and 98,313.40 is: 147,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,812.27 : 194,206.21 = 98,313.40 : x
  2. Step 2: Convert to fraction form
    129,812.27/194,206.21 = 98,313.40/x
  3. Step 3: Cross multiply
    129,812.27x = 194,206.21 × 98,313.40
  4. Step 4: Simplify right side
    129,812.27x = 19,093,071,710.78
  5. Step 5: Solve for x
    x = 19,093,071,710.78/129,812.27
  6. Step 6: Final answer
    x = 147,082.18

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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.