Home / 150,783.45-208,086.06-87,121.26

Finding the Fourth Proportional to 150,783.45, 208,086.06 and 87,121.26

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Solution

The fourth proportional to 150,783.45, 208,086.06 and 87,121.26 is: 120,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,783.45 : 208,086.06 = 87,121.26 : x
  2. Step 2: Convert to fraction form
    150,783.45/208,086.06 = 87,121.26/x
  3. Step 3: Cross multiply
    150,783.45x = 208,086.06 × 87,121.26
  4. Step 4: Simplify right side
    150,783.45x = 18,128,719,735.64
  5. Step 5: Solve for x
    x = 18,128,719,735.64/150,783.45
  6. Step 6: Final answer
    x = 120,230.17

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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.