Home / 150,099.54-207,129.63-82,103.28

Finding the Fourth Proportional to 150,099.54, 207,129.63 and 82,103.28

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Solution

The fourth proportional to 150,099.54, 207,129.63 and 82,103.28 is: 113,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,099.54 : 207,129.63 = 82,103.28 : x
  2. Step 2: Convert to fraction form
    150,099.54/207,129.63 = 82,103.28/x
  3. Step 3: Cross multiply
    150,099.54x = 207,129.63 × 82,103.28
  4. Step 4: Simplify right side
    150,099.54x = 17,006,022,008.19
  5. Step 5: Solve for x
    x = 17,006,022,008.19/150,099.54
  6. Step 6: Final answer
    x = 113,298.30

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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.