Home / 128,329.25-192,429.62-39,571.22

Finding the Fourth Proportional to 128,329.25, 192,429.62 and 39,571.22

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Solution

The fourth proportional to 128,329.25, 192,429.62 and 39,571.22 is: 59,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,329.25 : 192,429.62 = 39,571.22 : x
  2. Step 2: Convert to fraction form
    128,329.25/192,429.62 = 39,571.22/x
  3. Step 3: Cross multiply
    128,329.25x = 192,429.62 × 39,571.22
  4. Step 4: Simplify right side
    128,329.25x = 7,614,673,667.53
  5. Step 5: Solve for x
    x = 7,614,673,667.53/128,329.25
  6. Step 6: Final answer
    x = 59,337.01

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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.