Home / 105,812.68-146,022.60-58,069.12

Finding the Fourth Proportional to 105,812.68, 146,022.60 and 58,069.12

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Solution

The fourth proportional to 105,812.68, 146,022.60 and 58,069.12 is: 80,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,812.68 : 146,022.60 = 58,069.12 : x
  2. Step 2: Convert to fraction form
    105,812.68/146,022.60 = 58,069.12/x
  3. Step 3: Cross multiply
    105,812.68x = 146,022.60 × 58,069.12
  4. Step 4: Simplify right side
    105,812.68x = 8,479,403,882.11
  5. Step 5: Solve for x
    x = 8,479,403,882.11/105,812.68
  6. Step 6: Final answer
    x = 80,135.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.