Home / 445,849.32-668,704.86-130,221.48

Finding the Fourth Proportional to 445,849.32, 668,704.86 and 130,221.48

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Solution

The fourth proportional to 445,849.32, 668,704.86 and 130,221.48 is: 195,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,849.32 : 668,704.86 = 130,221.48 : x
  2. Step 2: Convert to fraction form
    445,849.32/668,704.86 = 130,221.48/x
  3. Step 3: Cross multiply
    445,849.32x = 668,704.86 × 130,221.48
  4. Step 4: Simplify right side
    445,849.32x = 87,079,736,552.39
  5. Step 5: Solve for x
    x = 87,079,736,552.39/445,849.32
  6. Step 6: Final answer
    x = 195,312.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.