Home / 147,313.78-203,286.46-86,065.66

Finding the Fourth Proportional to 147,313.78, 203,286.46 and 86,065.66

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Solution

The fourth proportional to 147,313.78, 203,286.46 and 86,065.66 is: 118,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,313.78 : 203,286.46 = 86,065.66 : x
  2. Step 2: Convert to fraction form
    147,313.78/203,286.46 = 86,065.66/x
  3. Step 3: Cross multiply
    147,313.78x = 203,286.46 × 86,065.66
  4. Step 4: Simplify right side
    147,313.78x = 17,495,983,348.96
  5. Step 5: Solve for x
    x = 17,495,983,348.96/147,313.78
  6. Step 6: Final answer
    x = 118,766.78

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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.