Home / 131,347.97-181,236.12-73,975

Finding the Fourth Proportional to 131,347.97, 181,236.12 and 73,975

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Solution

The fourth proportional to 131,347.97, 181,236.12 and 73,975 is: 102,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,347.97 : 181,236.12 = 73,975 : x
  2. Step 2: Convert to fraction form
    131,347.97/181,236.12 = 73,975/x
  3. Step 3: Cross multiply
    131,347.97x = 181,236.12 × 73,975
  4. Step 4: Simplify right side
    131,347.97x = 13,406,941,977
  5. Step 5: Solve for x
    x = 13,406,941,977/131,347.97
  6. Step 6: Final answer
    x = 102,071.94

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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.