Home / 129,828.62-179,171.80-73,219.34

Finding the Fourth Proportional to 129,828.62, 179,171.80 and 73,219.34

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Solution

The fourth proportional to 129,828.62, 179,171.80 and 73,219.34 is: 101,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.62 : 179,171.80 = 73,219.34 : x
  2. Step 2: Convert to fraction form
    129,828.62/179,171.80 = 73,219.34/x
  3. Step 3: Cross multiply
    129,828.62x = 179,171.80 × 73,219.34
  4. Step 4: Simplify right side
    129,828.62x = 13,118,840,942.61
  5. Step 5: Solve for x
    x = 13,118,840,942.61/129,828.62
  6. Step 6: Final answer
    x = 101,047.37

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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.