Home / 129,815.10-179,147.52-73,226.46

Finding the Fourth Proportional to 129,815.10, 179,147.52 and 73,226.46

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Solution

The fourth proportional to 129,815.10, 179,147.52 and 73,226.46 is: 101,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,815.10 : 179,147.52 = 73,226.46 : x
  2. Step 2: Convert to fraction form
    129,815.10/179,147.52 = 73,226.46/x
  3. Step 3: Cross multiply
    129,815.10x = 179,147.52 × 73,226.46
  4. Step 4: Simplify right side
    129,815.10x = 13,118,338,707.38
  5. Step 5: Solve for x
    x = 13,118,338,707.38/129,815.10
  6. Step 6: Final answer
    x = 101,054.03

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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.