Home / 130,380.15-179,928.57-73,019.33

Finding the Fourth Proportional to 130,380.15, 179,928.57 and 73,019.33

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Solution

The fourth proportional to 130,380.15, 179,928.57 and 73,019.33 is: 100,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,380.15 : 179,928.57 = 73,019.33 : x
  2. Step 2: Convert to fraction form
    130,380.15/179,928.57 = 73,019.33/x
  3. Step 3: Cross multiply
    130,380.15x = 179,928.57 × 73,019.33
  4. Step 4: Simplify right side
    130,380.15x = 13,138,262,729.62
  5. Step 5: Solve for x
    x = 13,138,262,729.62/130,380.15
  6. Step 6: Final answer
    x = 100,768.89

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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.