Home / 129,936.12-194,981.94-56,064.12

Finding the Fourth Proportional to 129,936.12, 194,981.94 and 56,064.12

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Solution

The fourth proportional to 129,936.12, 194,981.94 and 56,064.12 is: 84,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,936.12 : 194,981.94 = 56,064.12 : x
  2. Step 2: Convert to fraction form
    129,936.12/194,981.94 = 56,064.12/x
  3. Step 3: Cross multiply
    129,936.12x = 194,981.94 × 56,064.12
  4. Step 4: Simplify right side
    129,936.12x = 10,931,490,881.99
  5. Step 5: Solve for x
    x = 10,931,490,881.99/129,936.12
  6. Step 6: Final answer
    x = 84,129.73

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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.