Home / 86,356.98-119,227.68-66,176.64

Finding the Fourth Proportional to 86,356.98, 119,227.68 and 66,176.64

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Solution

The fourth proportional to 86,356.98, 119,227.68 and 66,176.64 is: 91,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,356.98 : 119,227.68 = 66,176.64 : x
  2. Step 2: Convert to fraction form
    86,356.98/119,227.68 = 66,176.64/x
  3. Step 3: Cross multiply
    86,356.98x = 119,227.68 × 66,176.64
  4. Step 4: Simplify right side
    86,356.98x = 7,890,087,257.40
  5. Step 5: Solve for x
    x = 7,890,087,257.40/86,356.98
  6. Step 6: Final answer
    x = 91,365.95

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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.