Home / 131,519.45-181,496.73-71,090.09

Finding the Fourth Proportional to 131,519.45, 181,496.73 and 71,090.09

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Solution

The fourth proportional to 131,519.45, 181,496.73 and 71,090.09 is: 98,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,519.45 : 181,496.73 = 71,090.09 : x
  2. Step 2: Convert to fraction form
    131,519.45/181,496.73 = 71,090.09/x
  3. Step 3: Cross multiply
    131,519.45x = 181,496.73 × 71,090.09
  4. Step 4: Simplify right side
    131,519.45x = 12,902,618,870.41
  5. Step 5: Solve for x
    x = 12,902,618,870.41/131,519.45
  6. Step 6: Final answer
    x = 98,104.26

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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.