Home / 139,232.58-192,141.16-75,570.38

Finding the Fourth Proportional to 139,232.58, 192,141.16 and 75,570.38

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Solution

The fourth proportional to 139,232.58, 192,141.16 and 75,570.38 is: 104,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,232.58 : 192,141.16 = 75,570.38 : x
  2. Step 2: Convert to fraction form
    139,232.58/192,141.16 = 75,570.38/x
  3. Step 3: Cross multiply
    139,232.58x = 192,141.16 × 75,570.38
  4. Step 4: Simplify right side
    139,232.58x = 14,520,180,474.84
  5. Step 5: Solve for x
    x = 14,520,180,474.84/139,232.58
  6. Step 6: Final answer
    x = 104,287.23

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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.