Home / 150,746.82-208,015.20-87,105.12

Finding the Fourth Proportional to 150,746.82, 208,015.20 and 87,105.12

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Solution

The fourth proportional to 150,746.82, 208,015.20 and 87,105.12 is: 120,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,746.82 : 208,015.20 = 87,105.12 : x
  2. Step 2: Convert to fraction form
    150,746.82/208,015.20 = 87,105.12/x
  3. Step 3: Cross multiply
    150,746.82x = 208,015.20 × 87,105.12
  4. Step 4: Simplify right side
    150,746.82x = 18,119,188,957.82
  5. Step 5: Solve for x
    x = 18,119,188,957.82/150,746.82
  6. Step 6: Final answer
    x = 120,196.16

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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.