Home / 86,399.17-119,246.12-68,629.80

Finding the Fourth Proportional to 86,399.17, 119,246.12 and 68,629.80

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Solution

The fourth proportional to 86,399.17, 119,246.12 and 68,629.80 is: 94,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,399.17 : 119,246.12 = 68,629.80 : x
  2. Step 2: Convert to fraction form
    86,399.17/119,246.12 = 68,629.80/x
  3. Step 3: Cross multiply
    86,399.17x = 119,246.12 × 68,629.80
  4. Step 4: Simplify right side
    86,399.17x = 8,183,837,366.38
  5. Step 5: Solve for x
    x = 8,183,837,366.38/86,399.17
  6. Step 6: Final answer
    x = 94,721.25

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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.