Home / 129,578.95-194,399.09-40,832.15

Finding the Fourth Proportional to 129,578.95, 194,399.09 and 40,832.15

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Solution

The fourth proportional to 129,578.95, 194,399.09 and 40,832.15 is: 61,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,578.95 : 194,399.09 = 40,832.15 : x
  2. Step 2: Convert to fraction form
    129,578.95/194,399.09 = 40,832.15/x
  3. Step 3: Cross multiply
    129,578.95x = 194,399.09 × 40,832.15
  4. Step 4: Simplify right side
    129,578.95x = 7,937,732,802.74
  5. Step 5: Solve for x
    x = 7,937,732,802.74/129,578.95
  6. Step 6: Final answer
    x = 61,257.89

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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.