Home / 135,254.75-186,665.58-77,896.11

Finding the Fourth Proportional to 135,254.75, 186,665.58 and 77,896.11

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Solution

The fourth proportional to 135,254.75, 186,665.58 and 77,896.11 is: 107,504.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,254.75 : 186,665.58 = 77,896.11 : x
  2. Step 2: Convert to fraction form
    135,254.75/186,665.58 = 77,896.11/x
  3. Step 3: Cross multiply
    135,254.75x = 186,665.58 × 77,896.11
  4. Step 4: Simplify right side
    135,254.75x = 14,540,523,252.89
  5. Step 5: Solve for x
    x = 14,540,523,252.89/135,254.75
  6. Step 6: Final answer
    x = 107,504.72

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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.