Home / 129,796.09-179,118.75-73,207.47

Finding the Fourth Proportional to 129,796.09, 179,118.75 and 73,207.47

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Solution

The fourth proportional to 129,796.09, 179,118.75 and 73,207.47 is: 101,026.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,796.09 : 179,118.75 = 73,207.47 : x
  2. Step 2: Convert to fraction form
    129,796.09/179,118.75 = 73,207.47/x
  3. Step 3: Cross multiply
    129,796.09x = 179,118.75 × 73,207.47
  4. Step 4: Simplify right side
    129,796.09x = 13,112,830,517.06
  5. Step 5: Solve for x
    x = 13,112,830,517.06/129,796.09
  6. Step 6: Final answer
    x = 101,026.39

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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.