Home / 136,817.04-188,755.56-83,081.76

Finding the Fourth Proportional to 136,817.04, 188,755.56 and 83,081.76

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Solution

The fourth proportional to 136,817.04, 188,755.56 and 83,081.76 is: 114,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,817.04 : 188,755.56 = 83,081.76 : x
  2. Step 2: Convert to fraction form
    136,817.04/188,755.56 = 83,081.76/x
  3. Step 3: Cross multiply
    136,817.04x = 188,755.56 × 83,081.76
  4. Step 4: Simplify right side
    136,817.04x = 15,682,144,134.59
  5. Step 5: Solve for x
    x = 15,682,144,134.59/136,817.04
  6. Step 6: Final answer
    x = 114,621.28

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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.