Home / 150,018.20-207,023.13-85,491.28

Finding the Fourth Proportional to 150,018.20, 207,023.13 and 85,491.28

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Solution

The fourth proportional to 150,018.20, 207,023.13 and 85,491.28 is: 117,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,018.20 : 207,023.13 = 85,491.28 : x
  2. Step 2: Convert to fraction form
    150,018.20/207,023.13 = 85,491.28/x
  3. Step 3: Cross multiply
    150,018.20x = 207,023.13 × 85,491.28
  4. Step 4: Simplify right side
    150,018.20x = 17,698,672,730.21
  5. Step 5: Solve for x
    x = 17,698,672,730.21/150,018.20
  6. Step 6: Final answer
    x = 117,976.83

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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.