Home / 150,215.81-207,320.58-85,684.73

Finding the Fourth Proportional to 150,215.81, 207,320.58 and 85,684.73

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Solution

The fourth proportional to 150,215.81, 207,320.58 and 85,684.73 is: 118,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,215.81 : 207,320.58 = 85,684.73 : x
  2. Step 2: Convert to fraction form
    150,215.81/207,320.58 = 85,684.73/x
  3. Step 3: Cross multiply
    150,215.81x = 207,320.58 × 85,684.73
  4. Step 4: Simplify right side
    150,215.81x = 17,764,206,884.14
  5. Step 5: Solve for x
    x = 17,764,206,884.14/150,215.81
  6. Step 6: Final answer
    x = 118,257.91

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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.