Home / 129,813.12-179,150.40-73,203.84

Finding the Fourth Proportional to 129,813.12, 179,150.40 and 73,203.84

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Solution

The fourth proportional to 129,813.12, 179,150.40 and 73,203.84 is: 101,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,813.12 : 179,150.40 = 73,203.84 : x
  2. Step 2: Convert to fraction form
    129,813.12/179,150.40 = 73,203.84/x
  3. Step 3: Cross multiply
    129,813.12x = 179,150.40 × 73,203.84
  4. Step 4: Simplify right side
    129,813.12x = 13,114,497,217.54
  5. Step 5: Solve for x
    x = 13,114,497,217.54/129,813.12
  6. Step 6: Final answer
    x = 101,025.98

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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.