Home / 131,505.04-181,425.96-83,749.84

Finding the Fourth Proportional to 131,505.04, 181,425.96 and 83,749.84

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Solution

The fourth proportional to 131,505.04, 181,425.96 and 83,749.84 is: 115,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,505.04 : 181,425.96 = 83,749.84 : x
  2. Step 2: Convert to fraction form
    131,505.04/181,425.96 = 83,749.84/x
  3. Step 3: Cross multiply
    131,505.04x = 181,425.96 × 83,749.84
  4. Step 4: Simplify right side
    131,505.04x = 15,194,395,121.85
  5. Step 5: Solve for x
    x = 15,194,395,121.85/131,505.04
  6. Step 6: Final answer
    x = 115,542.30

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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.