Home / 131,839.76-181,971.42-75,283.94

Finding the Fourth Proportional to 131,839.76, 181,971.42 and 75,283.94

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Solution

The fourth proportional to 131,839.76, 181,971.42 and 75,283.94 is: 103,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,839.76 : 181,971.42 = 75,283.94 : x
  2. Step 2: Convert to fraction form
    131,839.76/181,971.42 = 75,283.94/x
  3. Step 3: Cross multiply
    131,839.76x = 181,971.42 × 75,283.94
  4. Step 4: Simplify right side
    131,839.76x = 13,699,525,464.99
  5. Step 5: Solve for x
    x = 13,699,525,464.99/131,839.76
  6. Step 6: Final answer
    x = 103,910.42

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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.