Home / 86,298.75-119,146.82-66,118.14

Finding the Fourth Proportional to 86,298.75, 119,146.82 and 66,118.14

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Solution

The fourth proportional to 86,298.75, 119,146.82 and 66,118.14 is: 91,284.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,298.75 : 119,146.82 = 66,118.14 : x
  2. Step 2: Convert to fraction form
    86,298.75/119,146.82 = 66,118.14/x
  3. Step 3: Cross multiply
    86,298.75x = 119,146.82 × 66,118.14
  4. Step 4: Simplify right side
    86,298.75x = 7,877,765,794.72
  5. Step 5: Solve for x
    x = 7,877,765,794.72/86,298.75
  6. Step 6: Final answer
    x = 91,284.82

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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.