Home / 129,910.12-179,284.26-73,300.84

Finding the Fourth Proportional to 129,910.12, 179,284.26 and 73,300.84

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Solution

The fourth proportional to 129,910.12, 179,284.26 and 73,300.84 is: 101,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,910.12 : 179,284.26 = 73,300.84 : x
  2. Step 2: Convert to fraction form
    129,910.12/179,284.26 = 73,300.84/x
  3. Step 3: Cross multiply
    129,910.12x = 179,284.26 × 73,300.84
  4. Step 4: Simplify right side
    129,910.12x = 13,141,686,856.78
  5. Step 5: Solve for x
    x = 13,141,686,856.78/129,910.12
  6. Step 6: Final answer
    x = 101,159.84

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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.