Home / 131,605.03-181,610.13-75,005.47

Finding the Fourth Proportional to 131,605.03, 181,610.13 and 75,005.47

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Solution

The fourth proportional to 131,605.03, 181,610.13 and 75,005.47 is: 103,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,605.03 : 181,610.13 = 75,005.47 : x
  2. Step 2: Convert to fraction form
    131,605.03/181,610.13 = 75,005.47/x
  3. Step 3: Cross multiply
    131,605.03x = 181,610.13 × 75,005.47
  4. Step 4: Simplify right side
    131,605.03x = 13,621,753,157.41
  5. Step 5: Solve for x
    x = 13,621,753,157.41/131,605.03
  6. Step 6: Final answer
    x = 103,504.81

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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.