Home / 129,825.45-179,159.85-73,240.47

Finding the Fourth Proportional to 129,825.45, 179,159.85 and 73,240.47

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Solution

The fourth proportional to 129,825.45, 179,159.85 and 73,240.47 is: 101,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,825.45 : 179,159.85 = 73,240.47 : x
  2. Step 2: Convert to fraction form
    129,825.45/179,159.85 = 73,240.47/x
  3. Step 3: Cross multiply
    129,825.45x = 179,159.85 × 73,240.47
  4. Step 4: Simplify right side
    129,825.45x = 13,121,751,619.13
  5. Step 5: Solve for x
    x = 13,121,751,619.13/129,825.45
  6. Step 6: Final answer
    x = 101,072.26

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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.