Home / 129,681.53-194,467.20-50,783.21

Finding the Fourth Proportional to 129,681.53, 194,467.20 and 50,783.21

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Solution

The fourth proportional to 129,681.53, 194,467.20 and 50,783.21 is: 76,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,681.53 : 194,467.20 = 50,783.21 : x
  2. Step 2: Convert to fraction form
    129,681.53/194,467.20 = 50,783.21/x
  3. Step 3: Cross multiply
    129,681.53x = 194,467.20 × 50,783.21
  4. Step 4: Simplify right side
    129,681.53x = 9,875,668,655.71
  5. Step 5: Solve for x
    x = 9,875,668,655.71/129,681.53
  6. Step 6: Final answer
    x = 76,153.24

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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.