Home / 180,171.12-248,636-108,554.16

Finding the Fourth Proportional to 180,171.12, 248,636 and 108,554.16

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Solution

The fourth proportional to 180,171.12, 248,636 and 108,554.16 is: 149,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,171.12 : 248,636 = 108,554.16 : x
  2. Step 2: Convert to fraction form
    180,171.12/248,636 = 108,554.16/x
  3. Step 3: Cross multiply
    180,171.12x = 248,636 × 108,554.16
  4. Step 4: Simplify right side
    180,171.12x = 26,990,472,125.76
  5. Step 5: Solve for x
    x = 26,990,472,125.76/180,171.12
  6. Step 6: Final answer
    x = 149,804.65

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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.