Home / 100,501.48-150,441.18-85,571.56

Finding the Fourth Proportional to 100,501.48, 150,441.18 and 85,571.56

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Solution

The fourth proportional to 100,501.48, 150,441.18 and 85,571.56 is: 128,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,501.48 : 150,441.18 = 85,571.56 : x
  2. Step 2: Convert to fraction form
    100,501.48/150,441.18 = 85,571.56/x
  3. Step 3: Cross multiply
    100,501.48x = 150,441.18 × 85,571.56
  4. Step 4: Simplify right side
    100,501.48x = 12,873,486,460.84
  5. Step 5: Solve for x
    x = 12,873,486,460.84/100,501.48
  6. Step 6: Final answer
    x = 128,092.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.