Home / 82,176.84-123,558.68-75,681.45

Finding the Fourth Proportional to 82,176.84, 123,558.68 and 75,681.45

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Solution

The fourth proportional to 82,176.84, 123,558.68 and 75,681.45 is: 113,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,176.84 : 123,558.68 = 75,681.45 : x
  2. Step 2: Convert to fraction form
    82,176.84/123,558.68 = 75,681.45/x
  3. Step 3: Cross multiply
    82,176.84x = 123,558.68 × 75,681.45
  4. Step 4: Simplify right side
    82,176.84x = 9,351,100,251.69
  5. Step 5: Solve for x
    x = 9,351,100,251.69/82,176.84
  6. Step 6: Final answer
    x = 113,792.40

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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.