Home / 78,519.06-117,506.41-75,253.14

Finding the Fourth Proportional to 78,519.06, 117,506.41 and 75,253.14

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Solution

The fourth proportional to 78,519.06, 117,506.41 and 75,253.14 is: 112,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,519.06 : 117,506.41 = 75,253.14 : x
  2. Step 2: Convert to fraction form
    78,519.06/117,506.41 = 75,253.14/x
  3. Step 3: Cross multiply
    78,519.06x = 117,506.41 × 75,253.14
  4. Step 4: Simplify right side
    78,519.06x = 8,842,726,322.63
  5. Step 5: Solve for x
    x = 8,842,726,322.63/78,519.06
  6. Step 6: Final answer
    x = 112,618.85

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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.