Home / 129,561.53-194,331.35-40,802.13

Finding the Fourth Proportional to 129,561.53, 194,331.35 and 40,802.13

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Solution

The fourth proportional to 129,561.53, 194,331.35 and 40,802.13 is: 61,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,561.53 : 194,331.35 = 40,802.13 : x
  2. Step 2: Convert to fraction form
    129,561.53/194,331.35 = 40,802.13/x
  3. Step 3: Cross multiply
    129,561.53x = 194,331.35 × 40,802.13
  4. Step 4: Simplify right side
    129,561.53x = 7,929,133,107.78
  5. Step 5: Solve for x
    x = 7,929,133,107.78/129,561.53
  6. Step 6: Final answer
    x = 61,199.75

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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.