Home / 131,047.70-180,857.49-74,477.30

Finding the Fourth Proportional to 131,047.70, 180,857.49 and 74,477.30

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Solution

The fourth proportional to 131,047.70, 180,857.49 and 74,477.30 is: 102,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,047.70 : 180,857.49 = 74,477.30 : x
  2. Step 2: Convert to fraction form
    131,047.70/180,857.49 = 74,477.30/x
  3. Step 3: Cross multiply
    131,047.70x = 180,857.49 × 74,477.30
  4. Step 4: Simplify right side
    131,047.70x = 13,469,777,539.98
  5. Step 5: Solve for x
    x = 13,469,777,539.98/131,047.70
  6. Step 6: Final answer
    x = 102,785.30

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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.