Home / 129,501.24-194,127.30-66,351.21

Finding the Fourth Proportional to 129,501.24, 194,127.30 and 66,351.21

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Solution

The fourth proportional to 129,501.24, 194,127.30 and 66,351.21 is: 99,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,501.24 : 194,127.30 = 66,351.21 : x
  2. Step 2: Convert to fraction form
    129,501.24/194,127.30 = 66,351.21/x
  3. Step 3: Cross multiply
    129,501.24x = 194,127.30 × 66,351.21
  4. Step 4: Simplify right side
    129,501.24x = 12,880,581,249.03
  5. Step 5: Solve for x
    x = 12,880,581,249.03/129,501.24
  6. Step 6: Final answer
    x = 99,463.00

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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.