Home / 150,217.71-207,292.44-85,688.64

Finding the Fourth Proportional to 150,217.71, 207,292.44 and 85,688.64

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Solution

The fourth proportional to 150,217.71, 207,292.44 and 85,688.64 is: 118,245.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,217.71 : 207,292.44 = 85,688.64 : x
  2. Step 2: Convert to fraction form
    150,217.71/207,292.44 = 85,688.64/x
  3. Step 3: Cross multiply
    150,217.71x = 207,292.44 × 85,688.64
  4. Step 4: Simplify right side
    150,217.71x = 17,762,607,265.88
  5. Step 5: Solve for x
    x = 17,762,607,265.88/150,217.71
  6. Step 6: Final answer
    x = 118,245.76

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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.